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Finding the Fourth Proportional to 143,801.60, 215,702.40 and 101,811.20

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Solution

The fourth proportional to 143,801.60, 215,702.40 and 101,811.20 is: 152,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,801.60 : 215,702.40 = 101,811.20 : x
  2. Step 2: Convert to fraction form
    143,801.60/215,702.40 = 101,811.20/x
  3. Step 3: Cross multiply
    143,801.60x = 215,702.40 × 101,811.20
  4. Step 4: Simplify right side
    143,801.60x = 21,960,920,186.88
  5. Step 5: Solve for x
    x = 21,960,920,186.88/143,801.60
  6. Step 6: Final answer
    x = 152,716.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.