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Finding the Fourth Proportional to 124,657.95, 172,042.74 and 70,211.91

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Solution

The fourth proportional to 124,657.95, 172,042.74 and 70,211.91 is: 96,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,657.95 : 172,042.74 = 70,211.91 : x
  2. Step 2: Convert to fraction form
    124,657.95/172,042.74 = 70,211.91/x
  3. Step 3: Cross multiply
    124,657.95x = 172,042.74 × 70,211.91
  4. Step 4: Simplify right side
    124,657.95x = 12,079,449,377.03
  5. Step 5: Solve for x
    x = 12,079,449,377.03/124,657.95
  6. Step 6: Final answer
    x = 96,900.75

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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.