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Finding the Fourth Proportional to 100,053.20, 149,885.40 and 55,600.40

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Solution

The fourth proportional to 100,053.20, 149,885.40 and 55,600.40 is: 83,292.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,053.20 : 149,885.40 = 55,600.40 : x
  2. Step 2: Convert to fraction form
    100,053.20/149,885.40 = 55,600.40/x
  3. Step 3: Cross multiply
    100,053.20x = 149,885.40 × 55,600.40
  4. Step 4: Simplify right side
    100,053.20x = 8,333,688,194.16
  5. Step 5: Solve for x
    x = 8,333,688,194.16/100,053.20
  6. Step 6: Final answer
    x = 83,292.57

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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.