Home / 131,693.05-181,737.26-77,234.12

Finding the Fourth Proportional to 131,693.05, 181,737.26 and 77,234.12

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Solution

The fourth proportional to 131,693.05, 181,737.26 and 77,234.12 is: 106,583.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.05 : 181,737.26 = 77,234.12 : x
  2. Step 2: Convert to fraction form
    131,693.05/181,737.26 = 77,234.12/x
  3. Step 3: Cross multiply
    131,693.05x = 181,737.26 × 77,234.12
  4. Step 4: Simplify right side
    131,693.05x = 14,036,316,733.97
  5. Step 5: Solve for x
    x = 14,036,316,733.97/131,693.05
  6. Step 6: Final answer
    x = 106,583.58

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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.