Home / 125,966.40-173,820.75-77,560.65

Finding the Fourth Proportional to 125,966.40, 173,820.75 and 77,560.65

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Solution

The fourth proportional to 125,966.40, 173,820.75 and 77,560.65 is: 107,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,966.40 : 173,820.75 = 77,560.65 : x
  2. Step 2: Convert to fraction form
    125,966.40/173,820.75 = 77,560.65/x
  3. Step 3: Cross multiply
    125,966.40x = 173,820.75 × 77,560.65
  4. Step 4: Simplify right side
    125,966.40x = 13,481,650,353.49
  5. Step 5: Solve for x
    x = 13,481,650,353.49/125,966.40
  6. Step 6: Final answer
    x = 107,025.77

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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.