Home / 138,148.47-207,202.10-38,298.24

Finding the Fourth Proportional to 138,148.47, 207,202.10 and 38,298.24

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Solution

The fourth proportional to 138,148.47, 207,202.10 and 38,298.24 is: 57,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,148.47 : 207,202.10 = 38,298.24 : x
  2. Step 2: Convert to fraction form
    138,148.47/207,202.10 = 38,298.24/x
  3. Step 3: Cross multiply
    138,148.47x = 207,202.10 × 38,298.24
  4. Step 4: Simplify right side
    138,148.47x = 7,935,475,562.81
  5. Step 5: Solve for x
    x = 7,935,475,562.81/138,148.47
  6. Step 6: Final answer
    x = 57,441.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.