Home / 131,428.95-181,183.11-93,637.59

Finding the Fourth Proportional to 131,428.95, 181,183.11 and 93,637.59

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Solution

The fourth proportional to 131,428.95, 181,183.11 and 93,637.59 is: 129,085.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,428.95 : 181,183.11 = 93,637.59 : x
  2. Step 2: Convert to fraction form
    131,428.95/181,183.11 = 93,637.59/x
  3. Step 3: Cross multiply
    131,428.95x = 181,183.11 × 93,637.59
  4. Step 4: Simplify right side
    131,428.95x = 16,965,549,769.10
  5. Step 5: Solve for x
    x = 16,965,549,769.10/131,428.95
  6. Step 6: Final answer
    x = 129,085.33

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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.