Home / 125,025.12-172,538.71-68,436.50

Finding the Fourth Proportional to 125,025.12, 172,538.71 and 68,436.50

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Solution

The fourth proportional to 125,025.12, 172,538.71 and 68,436.50 is: 94,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,025.12 : 172,538.71 = 68,436.50 : x
  2. Step 2: Convert to fraction form
    125,025.12/172,538.71 = 68,436.50/x
  3. Step 3: Cross multiply
    125,025.12x = 172,538.71 × 68,436.50
  4. Step 4: Simplify right side
    125,025.12x = 11,807,944,393.13
  5. Step 5: Solve for x
    x = 11,807,944,393.13/125,025.12
  6. Step 6: Final answer
    x = 94,444.58

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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.