Home / 102,611.40-153,788.61-55,109.76

Finding the Fourth Proportional to 102,611.40, 153,788.61 and 55,109.76

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Solution

The fourth proportional to 102,611.40, 153,788.61 and 55,109.76 is: 82,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,611.40 : 153,788.61 = 55,109.76 : x
  2. Step 2: Convert to fraction form
    102,611.40/153,788.61 = 55,109.76/x
  3. Step 3: Cross multiply
    102,611.40x = 153,788.61 × 55,109.76
  4. Step 4: Simplify right side
    102,611.40x = 8,475,253,387.83
  5. Step 5: Solve for x
    x = 8,475,253,387.83/102,611.40
  6. Step 6: Final answer
    x = 82,595.63

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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.