Home / 104,065.55-143,610.45-56,318.90

Finding the Fourth Proportional to 104,065.55, 143,610.45 and 56,318.90

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Solution

The fourth proportional to 104,065.55, 143,610.45 and 56,318.90 is: 77,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.55 : 143,610.45 = 56,318.90 : x
  2. Step 2: Convert to fraction form
    104,065.55/143,610.45 = 56,318.90/x
  3. Step 3: Cross multiply
    104,065.55x = 143,610.45 × 56,318.90
  4. Step 4: Simplify right side
    104,065.55x = 8,087,981,854.45
  5. Step 5: Solve for x
    x = 8,087,981,854.45/104,065.55
  6. Step 6: Final answer
    x = 77,720.07

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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.