Home / 101,217.24-139,680.90-55,895.13

Finding the Fourth Proportional to 101,217.24, 139,680.90 and 55,895.13

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Solution

The fourth proportional to 101,217.24, 139,680.90 and 55,895.13 is: 77,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,217.24 : 139,680.90 = 55,895.13 : x
  2. Step 2: Convert to fraction form
    101,217.24/139,680.90 = 55,895.13/x
  3. Step 3: Cross multiply
    101,217.24x = 139,680.90 × 55,895.13
  4. Step 4: Simplify right side
    101,217.24x = 7,807,482,064.02
  5. Step 5: Solve for x
    x = 7,807,482,064.02/101,217.24
  6. Step 6: Final answer
    x = 77,135.89

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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.