Home / 151,387.44-208,914.72-87,762.18

Finding the Fourth Proportional to 151,387.44, 208,914.72 and 87,762.18

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Solution

The fourth proportional to 151,387.44, 208,914.72 and 87,762.18 is: 121,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,387.44 : 208,914.72 = 87,762.18 : x
  2. Step 2: Convert to fraction form
    151,387.44/208,914.72 = 87,762.18/x
  3. Step 3: Cross multiply
    151,387.44x = 208,914.72 × 87,762.18
  4. Step 4: Simplify right side
    151,387.44x = 18,334,811,261.29
  5. Step 5: Solve for x
    x = 18,334,811,261.29/151,387.44
  6. Step 6: Final answer
    x = 121,111.84

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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.