Home / 151,229.08-208,649.16-85,807.14

Finding the Fourth Proportional to 151,229.08, 208,649.16 and 85,807.14

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Solution

The fourth proportional to 151,229.08, 208,649.16 and 85,807.14 is: 118,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,229.08 : 208,649.16 = 85,807.14 : x
  2. Step 2: Convert to fraction form
    151,229.08/208,649.16 = 85,807.14/x
  3. Step 3: Cross multiply
    151,229.08x = 208,649.16 × 85,807.14
  4. Step 4: Simplify right side
    151,229.08x = 17,903,587,683.00
  5. Step 5: Solve for x
    x = 17,903,587,683.00/151,229.08
  6. Step 6: Final answer
    x = 118,387.20

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1.5x scale

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.