Home / 88,689.10-133,033.65-72,942.70

Finding the Fourth Proportional to 88,689.10, 133,033.65 and 72,942.70

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Solution

The fourth proportional to 88,689.10, 133,033.65 and 72,942.70 is: 109,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.10 : 133,033.65 = 72,942.70 : x
  2. Step 2: Convert to fraction form
    88,689.10/133,033.65 = 72,942.70/x
  3. Step 3: Cross multiply
    88,689.10x = 133,033.65 × 72,942.70
  4. Step 4: Simplify right side
    88,689.10x = 9,703,833,621.86
  5. Step 5: Solve for x
    x = 9,703,833,621.86/88,689.10
  6. Step 6: Final answer
    x = 109,414.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.