Home / 99,429.98-137,215.19-54,717.02

Finding the Fourth Proportional to 99,429.98, 137,215.19 and 54,717.02

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Solution

The fourth proportional to 99,429.98, 137,215.19 and 54,717.02 is: 75,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,429.98 : 137,215.19 = 54,717.02 : x
  2. Step 2: Convert to fraction form
    99,429.98/137,215.19 = 54,717.02/x
  3. Step 3: Cross multiply
    99,429.98x = 137,215.19 × 54,717.02
  4. Step 4: Simplify right side
    99,429.98x = 7,508,006,295.53
  5. Step 5: Solve for x
    x = 7,508,006,295.53/99,429.98
  6. Step 6: Final answer
    x = 75,510.49

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1.5x scale

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.