Home / 125,336.32-172,986.23-74,377.15

Finding the Fourth Proportional to 125,336.32, 172,986.23 and 74,377.15

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Solution

The fourth proportional to 125,336.32, 172,986.23 and 74,377.15 is: 102,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,336.32 : 172,986.23 = 74,377.15 : x
  2. Step 2: Convert to fraction form
    125,336.32/172,986.23 = 74,377.15/x
  3. Step 3: Cross multiply
    125,336.32x = 172,986.23 × 74,377.15
  4. Step 4: Simplify right side
    125,336.32x = 12,866,221,911.71
  5. Step 5: Solve for x
    x = 12,866,221,911.71/125,336.32
  6. Step 6: Final answer
    x = 102,653.58

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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.