Home / 124,138.11-186,061.32-57,437.31

Finding the Fourth Proportional to 124,138.11, 186,061.32 and 57,437.31

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Solution

The fourth proportional to 124,138.11, 186,061.32 and 57,437.31 is: 86,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,138.11 : 186,061.32 = 57,437.31 : x
  2. Step 2: Convert to fraction form
    124,138.11/186,061.32 = 57,437.31/x
  3. Step 3: Cross multiply
    124,138.11x = 186,061.32 × 57,437.31
  4. Step 4: Simplify right side
    124,138.11x = 10,686,861,715.85
  5. Step 5: Solve for x
    x = 10,686,861,715.85/124,138.11
  6. Step 6: Final answer
    x = 86,088.48

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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.