Home / 149,017.24-205,539.69-101,187.55

Finding the Fourth Proportional to 149,017.24, 205,539.69 and 101,187.55

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Solution

The fourth proportional to 149,017.24, 205,539.69 and 101,187.55 is: 139,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,017.24 : 205,539.69 = 101,187.55 : x
  2. Step 2: Convert to fraction form
    149,017.24/205,539.69 = 101,187.55/x
  3. Step 3: Cross multiply
    149,017.24x = 205,539.69 × 101,187.55
  4. Step 4: Simplify right side
    149,017.24x = 20,798,057,658.86
  5. Step 5: Solve for x
    x = 20,798,057,658.86/149,017.24
  6. Step 6: Final answer
    x = 139,568.13

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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.