Home / 125,374.07-172,970.81-82,376.71

Finding the Fourth Proportional to 125,374.07, 172,970.81 and 82,376.71

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Solution

The fourth proportional to 125,374.07, 172,970.81 and 82,376.71 is: 113,650.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,374.07 : 172,970.81 = 82,376.71 : x
  2. Step 2: Convert to fraction form
    125,374.07/172,970.81 = 82,376.71/x
  3. Step 3: Cross multiply
    125,374.07x = 172,970.81 × 82,376.71
  4. Step 4: Simplify right side
    125,374.07x = 14,248,765,718.44
  5. Step 5: Solve for x
    x = 14,248,765,718.44/125,374.07
  6. Step 6: Final answer
    x = 113,650.02

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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.