Home / 98,723.15-136,237.95-55,711.74

Finding the Fourth Proportional to 98,723.15, 136,237.95 and 55,711.74

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Solution

The fourth proportional to 98,723.15, 136,237.95 and 55,711.74 is: 76,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,723.15 : 136,237.95 = 55,711.74 : x
  2. Step 2: Convert to fraction form
    98,723.15/136,237.95 = 55,711.74/x
  3. Step 3: Cross multiply
    98,723.15x = 136,237.95 × 55,711.74
  4. Step 4: Simplify right side
    98,723.15x = 7,590,053,248.53
  5. Step 5: Solve for x
    x = 7,590,053,248.53/98,723.15
  6. Step 6: Final answer
    x = 76,882.21

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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.