Home / 138,089,090.08-190,625,089.67-91,074,054.85

Finding the Fourth Proportional to 138,089,090.08, 190,625,089.67 and 91,074,054.85

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Solution

The fourth proportional to 138,089,090.08, 190,625,089.67 and 91,074,054.85 is: 125,723,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,089,090.08 : 190,625,089.67 = 91,074,054.85 : x
  2. Step 2: Convert to fraction form
    138,089,090.08/190,625,089.67 = 91,074,054.85/x
  3. Step 3: Cross multiply
    138,089,090.08x = 190,625,089.67 × 91,074,054.85
  4. Step 4: Simplify right side
    138,089,090.08x = 17,360,999,871,801,342
  5. Step 5: Solve for x
    x = 17,360,999,871,801,342/138,089,090.08
  6. Step 6: Final answer
    x = 125,723,182.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.