Home / 137,984.23-190,419.93-77,551.33

Finding the Fourth Proportional to 137,984.23, 190,419.93 and 77,551.33

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Solution

The fourth proportional to 137,984.23, 190,419.93 and 77,551.33 is: 107,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,984.23 : 190,419.93 = 77,551.33 : x
  2. Step 2: Convert to fraction form
    137,984.23/190,419.93 = 77,551.33/x
  3. Step 3: Cross multiply
    137,984.23x = 190,419.93 × 77,551.33
  4. Step 4: Simplify right side
    137,984.23x = 14,767,318,830.01
  5. Step 5: Solve for x
    x = 14,767,318,830.01/137,984.23
  6. Step 6: Final answer
    x = 107,021.79

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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.