Home / 136,215.72-187,948.08-79,601.04

Finding the Fourth Proportional to 136,215.72, 187,948.08 and 79,601.04

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Solution

The fourth proportional to 136,215.72, 187,948.08 and 79,601.04 is: 109,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,215.72 : 187,948.08 = 79,601.04 : x
  2. Step 2: Convert to fraction form
    136,215.72/187,948.08 = 79,601.04/x
  3. Step 3: Cross multiply
    136,215.72x = 187,948.08 × 79,601.04
  4. Step 4: Simplify right side
    136,215.72x = 14,960,862,634.00
  5. Step 5: Solve for x
    x = 14,960,862,634.00/136,215.72
  6. Step 6: Final answer
    x = 109,832.13

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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.