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Finding the Fourth Proportional to 125,510.90, 173,162.27 and 80,215.02

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Solution

The fourth proportional to 125,510.90, 173,162.27 and 80,215.02 is: 110,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,510.90 : 173,162.27 = 80,215.02 : x
  2. Step 2: Convert to fraction form
    125,510.90/173,162.27 = 80,215.02/x
  3. Step 3: Cross multiply
    125,510.90x = 173,162.27 × 80,215.02
  4. Step 4: Simplify right side
    125,510.90x = 13,890,214,185.75
  5. Step 5: Solve for x
    x = 13,890,214,185.75/125,510.90
  6. Step 6: Final answer
    x = 110,669.38

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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.