Home / 156,787.52-216,456.53-103,228.23

Finding the Fourth Proportional to 156,787.52, 216,456.53 and 103,228.23

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Solution

The fourth proportional to 156,787.52, 216,456.53 and 103,228.23 is: 142,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,787.52 : 216,456.53 = 103,228.23 : x
  2. Step 2: Convert to fraction form
    156,787.52/216,456.53 = 103,228.23/x
  3. Step 3: Cross multiply
    156,787.52x = 216,456.53 × 103,228.23
  4. Step 4: Simplify right side
    156,787.52x = 22,344,423,947.70
  5. Step 5: Solve for x
    x = 22,344,423,947.70/156,787.52
  6. Step 6: Final answer
    x = 142,514.04

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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.