Home / 121,144.17-181,516.23-70,400.73

Finding the Fourth Proportional to 121,144.17, 181,516.23 and 70,400.73

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Solution

The fourth proportional to 121,144.17, 181,516.23 and 70,400.73 is: 105,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144.17 : 181,516.23 = 70,400.73 : x
  2. Step 2: Convert to fraction form
    121,144.17/181,516.23 = 70,400.73/x
  3. Step 3: Cross multiply
    121,144.17x = 181,516.23 × 70,400.73
  4. Step 4: Simplify right side
    121,144.17x = 12,778,875,098.85
  5. Step 5: Solve for x
    x = 12,778,875,098.85/121,144.17
  6. Step 6: Final answer
    x = 105,484.85

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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.