Home / 101,177.09-139,624.91-55,854.24

Finding the Fourth Proportional to 101,177.09, 139,624.91 and 55,854.24

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Solution

The fourth proportional to 101,177.09, 139,624.91 and 55,854.24 is: 77,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,177.09 : 139,624.91 = 55,854.24 : x
  2. Step 2: Convert to fraction form
    101,177.09/139,624.91 = 55,854.24/x
  3. Step 3: Cross multiply
    101,177.09x = 139,624.91 × 55,854.24
  4. Step 4: Simplify right side
    101,177.09x = 7,798,642,953.85
  5. Step 5: Solve for x
    x = 7,798,642,953.85/101,177.09
  6. Step 6: Final answer
    x = 77,079.14

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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.