Home / 138,746.59-191,471.65-75,085.71

Finding the Fourth Proportional to 138,746.59, 191,471.65 and 75,085.71

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Solution

The fourth proportional to 138,746.59, 191,471.65 and 75,085.71 is: 103,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.59 : 191,471.65 = 75,085.71 : x
  2. Step 2: Convert to fraction form
    138,746.59/191,471.65 = 75,085.71/x
  3. Step 3: Cross multiply
    138,746.59x = 191,471.65 × 75,085.71
  4. Step 4: Simplify right side
    138,746.59x = 14,376,784,409.69
  5. Step 5: Solve for x
    x = 14,376,784,409.69/138,746.59
  6. Step 6: Final answer
    x = 103,619.01

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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.