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Finding the Fourth Proportional to 125,396.32, 172,831.44 and 119,490.88

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Solution

The fourth proportional to 125,396.32, 172,831.44 and 119,490.88 is: 164,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,396.32 : 172,831.44 = 119,490.88 : x
  2. Step 2: Convert to fraction form
    125,396.32/172,831.44 = 119,490.88/x
  3. Step 3: Cross multiply
    125,396.32x = 172,831.44 × 119,490.88
  4. Step 4: Simplify right side
    125,396.32x = 20,651,780,857.27
  5. Step 5: Solve for x
    x = 20,651,780,857.27/125,396.32
  6. Step 6: Final answer
    x = 164,692.08

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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.