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Finding the Fourth Proportional to 125,381.32, 186,768.80 and 118,590.64

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Solution

The fourth proportional to 125,381.32, 186,768.80 and 118,590.64 is: 176,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,381.32 : 186,768.80 = 118,590.64 : x
  2. Step 2: Convert to fraction form
    125,381.32/186,768.80 = 118,590.64/x
  3. Step 3: Cross multiply
    125,381.32x = 186,768.80 × 118,590.64
  4. Step 4: Simplify right side
    125,381.32x = 22,149,031,524.03
  5. Step 5: Solve for x
    x = 22,149,031,524.03/125,381.32
  6. Step 6: Final answer
    x = 176,653.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.