Home / 138,256.55-207,384.70-38,416.69

Finding the Fourth Proportional to 138,256.55, 207,384.70 and 38,416.69

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Solution

The fourth proportional to 138,256.55, 207,384.70 and 38,416.69 is: 57,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,256.55 : 207,384.70 = 38,416.69 : x
  2. Step 2: Convert to fraction form
    138,256.55/207,384.70 = 38,416.69/x
  3. Step 3: Cross multiply
    138,256.55x = 207,384.70 × 38,416.69
  4. Step 4: Simplify right side
    138,256.55x = 7,967,033,730.64
  5. Step 5: Solve for x
    x = 7,967,033,730.64/138,256.55
  6. Step 6: Final answer
    x = 57,625.00

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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.