Home / 111,126.99-153,355.22-60,139.71

Finding the Fourth Proportional to 111,126.99, 153,355.22 and 60,139.71

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Solution

The fourth proportional to 111,126.99, 153,355.22 and 60,139.71 is: 82,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,126.99 : 153,355.22 = 60,139.71 : x
  2. Step 2: Convert to fraction form
    111,126.99/153,355.22 = 60,139.71/x
  3. Step 3: Cross multiply
    111,126.99x = 153,355.22 × 60,139.71
  4. Step 4: Simplify right side
    111,126.99x = 9,222,738,457.79
  5. Step 5: Solve for x
    x = 9,222,738,457.79/111,126.99
  6. Step 6: Final answer
    x = 82,992.79

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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.