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Finding the Fourth Proportional to 124,351.61, 186,549.99 and 71,103.63

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Solution

The fourth proportional to 124,351.61, 186,549.99 and 71,103.63 is: 106,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,351.61 : 186,549.99 = 71,103.63 : x
  2. Step 2: Convert to fraction form
    124,351.61/186,549.99 = 71,103.63/x
  3. Step 3: Cross multiply
    124,351.61x = 186,549.99 × 71,103.63
  4. Step 4: Simplify right side
    124,351.61x = 13,264,381,465.46
  5. Step 5: Solve for x
    x = 13,264,381,465.46/124,351.61
  6. Step 6: Final answer
    x = 106,668.36

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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.