Home / 129,020.04-193,302.72-89,602.20

Finding the Fourth Proportional to 129,020.04, 193,302.72 and 89,602.20

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Solution

The fourth proportional to 129,020.04, 193,302.72 and 89,602.20 is: 134,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,020.04 : 193,302.72 = 89,602.20 : x
  2. Step 2: Convert to fraction form
    129,020.04/193,302.72 = 89,602.20/x
  3. Step 3: Cross multiply
    129,020.04x = 193,302.72 × 89,602.20
  4. Step 4: Simplify right side
    129,020.04x = 17,320,348,977.98
  5. Step 5: Solve for x
    x = 17,320,348,977.98/129,020.04
  6. Step 6: Final answer
    x = 134,245.42

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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.