Home / 138,356.64-207,562.08-49,586.40

Finding the Fourth Proportional to 138,356.64, 207,562.08 and 49,586.40

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Solution

The fourth proportional to 138,356.64, 207,562.08 and 49,586.40 is: 74,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,356.64 : 207,562.08 = 49,586.40 : x
  2. Step 2: Convert to fraction form
    138,356.64/207,562.08 = 49,586.40/x
  3. Step 3: Cross multiply
    138,356.64x = 207,562.08 × 49,586.40
  4. Step 4: Simplify right side
    138,356.64x = 10,292,256,323.71
  5. Step 5: Solve for x
    x = 10,292,256,323.71/138,356.64
  6. Step 6: Final answer
    x = 74,389.32

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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.