Home / 150,072.08-207,151.56-86,435.12

Finding the Fourth Proportional to 150,072.08, 207,151.56 and 86,435.12

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Solution

The fourth proportional to 150,072.08, 207,151.56 and 86,435.12 is: 119,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,072.08 : 207,151.56 = 86,435.12 : x
  2. Step 2: Convert to fraction form
    150,072.08/207,151.56 = 86,435.12/x
  3. Step 3: Cross multiply
    150,072.08x = 207,151.56 × 86,435.12
  4. Step 4: Simplify right side
    150,072.08x = 17,905,169,946.79
  5. Step 5: Solve for x
    x = 17,905,169,946.79/150,072.08
  6. Step 6: Final answer
    x = 119,310.47

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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.