Home / 153,166.60-229,922.70-90,872.20

Finding the Fourth Proportional to 153,166.60, 229,922.70 and 90,872.20

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Solution

The fourth proportional to 153,166.60, 229,922.70 and 90,872.20 is: 136,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,166.60 : 229,922.70 = 90,872.20 : x
  2. Step 2: Convert to fraction form
    153,166.60/229,922.70 = 90,872.20/x
  3. Step 3: Cross multiply
    153,166.60x = 229,922.70 × 90,872.20
  4. Step 4: Simplify right side
    153,166.60x = 20,893,581,578.94
  5. Step 5: Solve for x
    x = 20,893,581,578.94/153,166.60
  6. Step 6: Final answer
    x = 136,410.82

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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.