Home / 103,218.68-142,446.84-60,790.88

Finding the Fourth Proportional to 103,218.68, 142,446.84 and 60,790.88

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Solution

The fourth proportional to 103,218.68, 142,446.84 and 60,790.88 is: 83,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,218.68 : 142,446.84 = 60,790.88 : x
  2. Step 2: Convert to fraction form
    103,218.68/142,446.84 = 60,790.88/x
  3. Step 3: Cross multiply
    103,218.68x = 142,446.84 × 60,790.88
  4. Step 4: Simplify right side
    103,218.68x = 8,659,468,756.82
  5. Step 5: Solve for x
    x = 8,659,468,756.82/103,218.68
  6. Step 6: Final answer
    x = 83,894.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.