Home / 99,336.93-137,135.76-76,624.94

Finding the Fourth Proportional to 99,336.93, 137,135.76 and 76,624.94

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Solution

The fourth proportional to 99,336.93, 137,135.76 and 76,624.94 is: 105,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,336.93 : 137,135.76 = 76,624.94 : x
  2. Step 2: Convert to fraction form
    99,336.93/137,135.76 = 76,624.94/x
  3. Step 3: Cross multiply
    99,336.93x = 137,135.76 × 76,624.94
  4. Step 4: Simplify right side
    99,336.93x = 10,508,018,881.47
  5. Step 5: Solve for x
    x = 10,508,018,881.47/99,336.93
  6. Step 6: Final answer
    x = 105,781.59

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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.