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Finding the Fourth Proportional to 159,440.04, 220,037.20 and 87,820.04

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Solution

The fourth proportional to 159,440.04, 220,037.20 and 87,820.04 is: 121,197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,440.04 : 220,037.20 = 87,820.04 : x
  2. Step 2: Convert to fraction form
    159,440.04/220,037.20 = 87,820.04/x
  3. Step 3: Cross multiply
    159,440.04x = 220,037.20 × 87,820.04
  4. Step 4: Simplify right side
    159,440.04x = 19,323,675,705.49
  5. Step 5: Solve for x
    x = 19,323,675,705.49/159,440.04
  6. Step 6: Final answer
    x = 121,197.13

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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.