Home / 125,180.32-172,748.93-74,218.20

Finding the Fourth Proportional to 125,180.32, 172,748.93 and 74,218.20

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Solution

The fourth proportional to 125,180.32, 172,748.93 and 74,218.20 is: 102,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,180.32 : 172,748.93 = 74,218.20 : x
  2. Step 2: Convert to fraction form
    125,180.32/172,748.93 = 74,218.20/x
  3. Step 3: Cross multiply
    125,180.32x = 172,748.93 × 74,218.20
  4. Step 4: Simplify right side
    125,180.32x = 12,821,114,636.53
  5. Step 5: Solve for x
    x = 12,821,114,636.53/125,180.32
  6. Step 6: Final answer
    x = 102,421.17

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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.