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Finding the Fourth Proportional to 124,214, 171,414.60 and 70,509.20

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Solution

The fourth proportional to 124,214, 171,414.60 and 70,509.20 is: 97,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,214 : 171,414.60 = 70,509.20 : x
  2. Step 2: Convert to fraction form
    124,214/171,414.60 = 70,509.20/x
  3. Step 3: Cross multiply
    124,214x = 171,414.60 × 70,509.20
  4. Step 4: Simplify right side
    124,214x = 12,086,306,314.32
  5. Step 5: Solve for x
    x = 12,086,306,314.32/124,214
  6. Step 6: Final answer
    x = 97,302.29

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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.