Home / 102,520.20-153,780.30-94,225.80

Finding the Fourth Proportional to 102,520.20, 153,780.30 and 94,225.80

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Solution

The fourth proportional to 102,520.20, 153,780.30 and 94,225.80 is: 141,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,520.20 : 153,780.30 = 94,225.80 : x
  2. Step 2: Convert to fraction form
    102,520.20/153,780.30 = 94,225.80/x
  3. Step 3: Cross multiply
    102,520.20x = 153,780.30 × 94,225.80
  4. Step 4: Simplify right side
    102,520.20x = 14,490,071,791.74
  5. Step 5: Solve for x
    x = 14,490,071,791.74/102,520.20
  6. Step 6: Final answer
    x = 141,338.70

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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.