Home / 147,037.10-220,555.65-76,937.90

Finding the Fourth Proportional to 147,037.10, 220,555.65 and 76,937.90

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Solution

The fourth proportional to 147,037.10, 220,555.65 and 76,937.90 is: 115,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,037.10 : 220,555.65 = 76,937.90 : x
  2. Step 2: Convert to fraction form
    147,037.10/220,555.65 = 76,937.90/x
  3. Step 3: Cross multiply
    147,037.10x = 220,555.65 × 76,937.90
  4. Step 4: Simplify right side
    147,037.10x = 16,969,088,544.14
  5. Step 5: Solve for x
    x = 16,969,088,544.14/147,037.10
  6. Step 6: Final answer
    x = 115,406.85

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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.