Home / 124,690.26-172,073.70-70,978.76

Finding the Fourth Proportional to 124,690.26, 172,073.70 and 70,978.76

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Solution

The fourth proportional to 124,690.26, 172,073.70 and 70,978.76 is: 97,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,690.26 : 172,073.70 = 70,978.76 : x
  2. Step 2: Convert to fraction form
    124,690.26/172,073.70 = 70,978.76/x
  3. Step 3: Cross multiply
    124,690.26x = 172,073.70 × 70,978.76
  4. Step 4: Simplify right side
    124,690.26x = 12,213,577,639.52
  5. Step 5: Solve for x
    x = 12,213,577,639.52/124,690.26
  6. Step 6: Final answer
    x = 97,951.33

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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.