Home / 138,746.34-191,471.30-75,085.47

Finding the Fourth Proportional to 138,746.34, 191,471.30 and 75,085.47

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Solution

The fourth proportional to 138,746.34, 191,471.30 and 75,085.47 is: 103,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.34 : 191,471.30 = 75,085.47 : x
  2. Step 2: Convert to fraction form
    138,746.34/191,471.30 = 75,085.47/x
  3. Step 3: Cross multiply
    138,746.34x = 191,471.30 × 75,085.47
  4. Step 4: Simplify right side
    138,746.34x = 14,376,712,552.01
  5. Step 5: Solve for x
    x = 14,376,712,552.01/138,746.34
  6. Step 6: Final answer
    x = 103,618.68

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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.