Home / 129,302.61-193,539.07-69,180.69

Finding the Fourth Proportional to 129,302.61, 193,539.07 and 69,180.69

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Solution

The fourth proportional to 129,302.61, 193,539.07 and 69,180.69 is: 103,549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302.61 : 193,539.07 = 69,180.69 : x
  2. Step 2: Convert to fraction form
    129,302.61/193,539.07 = 69,180.69/x
  3. Step 3: Cross multiply
    129,302.61x = 193,539.07 × 69,180.69
  4. Step 4: Simplify right side
    129,302.61x = 13,389,166,058.65
  5. Step 5: Solve for x
    x = 13,389,166,058.65/129,302.61
  6. Step 6: Final answer
    x = 103,549.08

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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.