Home / 99,799.92-137,746.44-67,981.50

Finding the Fourth Proportional to 99,799.92, 137,746.44 and 67,981.50

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Solution

The fourth proportional to 99,799.92, 137,746.44 and 67,981.50 is: 93,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,799.92 : 137,746.44 = 67,981.50 : x
  2. Step 2: Convert to fraction form
    99,799.92/137,746.44 = 67,981.50/x
  3. Step 3: Cross multiply
    99,799.92x = 137,746.44 × 67,981.50
  4. Step 4: Simplify right side
    99,799.92x = 9,364,209,610.86
  5. Step 5: Solve for x
    x = 9,364,209,610.86/99,799.92
  6. Step 6: Final answer
    x = 93,829.83

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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.