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Finding the Fourth Proportional to 124,530.70, 171,851.52 and 70,815.70

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Solution

The fourth proportional to 124,530.70, 171,851.52 and 70,815.70 is: 97,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,530.70 : 171,851.52 = 70,815.70 : x
  2. Step 2: Convert to fraction form
    124,530.70/171,851.52 = 70,815.70/x
  3. Step 3: Cross multiply
    124,530.70x = 171,851.52 × 70,815.70
  4. Step 4: Simplify right side
    124,530.70x = 12,169,785,684.86
  5. Step 5: Solve for x
    x = 12,169,785,684.86/124,530.70
  6. Step 6: Final answer
    x = 97,725.18

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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.