Home / 125,589.16-189,126.58-90,772.12

Finding the Fourth Proportional to 125,589.16, 189,126.58 and 90,772.12

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Solution

The fourth proportional to 125,589.16, 189,126.58 and 90,772.12 is: 136,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,589.16 : 189,126.58 = 90,772.12 : x
  2. Step 2: Convert to fraction form
    125,589.16/189,126.58 = 90,772.12/x
  3. Step 3: Cross multiply
    125,589.16x = 189,126.58 × 90,772.12
  4. Step 4: Simplify right side
    125,589.16x = 17,167,420,614.95
  5. Step 5: Solve for x
    x = 17,167,420,614.95/125,589.16
  6. Step 6: Final answer
    x = 136,695.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.