Home / 124,377.12-171,642.24-76,603.32

Finding the Fourth Proportional to 124,377.12, 171,642.24 and 76,603.32

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Solution

The fourth proportional to 124,377.12, 171,642.24 and 76,603.32 is: 105,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,377.12 : 171,642.24 = 76,603.32 : x
  2. Step 2: Convert to fraction form
    124,377.12/171,642.24 = 76,603.32/x
  3. Step 3: Cross multiply
    124,377.12x = 171,642.24 × 76,603.32
  4. Step 4: Simplify right side
    124,377.12x = 13,148,365,436.24
  5. Step 5: Solve for x
    x = 13,148,365,436.24/124,377.12
  6. Step 6: Final answer
    x = 105,713.70

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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.