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Finding the Fourth Proportional to 144,005.40, 215,630.10 and 101,656.80

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Solution

The fourth proportional to 144,005.40, 215,630.10 and 101,656.80 is: 152,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.40 : 215,630.10 = 101,656.80 : x
  2. Step 2: Convert to fraction form
    144,005.40/215,630.10 = 101,656.80/x
  3. Step 3: Cross multiply
    144,005.40x = 215,630.10 × 101,656.80
  4. Step 4: Simplify right side
    144,005.40x = 21,920,265,949.68
  5. Step 5: Solve for x
    x = 21,920,265,949.68/144,005.40
  6. Step 6: Final answer
    x = 152,218.36

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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.