Home / 99,143.28-136,817.37-56,701.71

Finding the Fourth Proportional to 99,143.28, 136,817.37 and 56,701.71

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Solution

The fourth proportional to 99,143.28, 136,817.37 and 56,701.71 is: 78,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,143.28 : 136,817.37 = 56,701.71 : x
  2. Step 2: Convert to fraction form
    99,143.28/136,817.37 = 56,701.71/x
  3. Step 3: Cross multiply
    99,143.28x = 136,817.37 × 56,701.71
  4. Step 4: Simplify right side
    99,143.28x = 7,757,778,836.70
  5. Step 5: Solve for x
    x = 7,757,778,836.70/99,143.28
  6. Step 6: Final answer
    x = 78,248.16

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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.