Home / 99,212.59-136,874.79-56,182.20

Finding the Fourth Proportional to 99,212.59, 136,874.79 and 56,182.20

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Solution

The fourth proportional to 99,212.59, 136,874.79 and 56,182.20 is: 77,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,212.59 : 136,874.79 = 56,182.20 : x
  2. Step 2: Convert to fraction form
    99,212.59/136,874.79 = 56,182.20/x
  3. Step 3: Cross multiply
    99,212.59x = 136,874.79 × 56,182.20
  4. Step 4: Simplify right side
    99,212.59x = 7,689,926,545.83
  5. Step 5: Solve for x
    x = 7,689,926,545.83/99,212.59
  6. Step 6: Final answer
    x = 77,509.58

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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.