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Finding the Fourth Proportional to 124,207.40, 171,406.86 and 67,619.18

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Solution

The fourth proportional to 124,207.40, 171,406.86 and 67,619.18 is: 93,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,207.40 : 171,406.86 = 67,619.18 : x
  2. Step 2: Convert to fraction form
    124,207.40/171,406.86 = 67,619.18/x
  3. Step 3: Cross multiply
    124,207.40x = 171,406.86 × 67,619.18
  4. Step 4: Simplify right side
    124,207.40x = 11,590,391,319.57
  5. Step 5: Solve for x
    x = 11,590,391,319.57/124,207.40
  6. Step 6: Final answer
    x = 93,314.82

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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.