Home / 111,545.10-153,942.93-63,789.12

Finding the Fourth Proportional to 111,545.10, 153,942.93 and 63,789.12

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Solution

The fourth proportional to 111,545.10, 153,942.93 and 63,789.12 is: 88,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,545.10 : 153,942.93 = 63,789.12 : x
  2. Step 2: Convert to fraction form
    111,545.10/153,942.93 = 63,789.12/x
  3. Step 3: Cross multiply
    111,545.10x = 153,942.93 × 63,789.12
  4. Step 4: Simplify right side
    111,545.10x = 9,819,884,034.92
  5. Step 5: Solve for x
    x = 9,819,884,034.92/111,545.10
  6. Step 6: Final answer
    x = 88,035.10

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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.