Home / 125,056.85-172,588.32-71,329.55

Finding the Fourth Proportional to 125,056.85, 172,588.32 and 71,329.55

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Solution

The fourth proportional to 125,056.85, 172,588.32 and 71,329.55 is: 98,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,056.85 : 172,588.32 = 71,329.55 : x
  2. Step 2: Convert to fraction form
    125,056.85/172,588.32 = 71,329.55/x
  3. Step 3: Cross multiply
    125,056.85x = 172,588.32 × 71,329.55
  4. Step 4: Simplify right side
    125,056.85x = 12,310,646,337.91
  5. Step 5: Solve for x
    x = 12,310,646,337.91/125,056.85
  6. Step 6: Final answer
    x = 98,440.40

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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.