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Finding the Fourth Proportional to 127,306.58, 175,609.99 and 79,476.89

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Solution

The fourth proportional to 127,306.58, 175,609.99 and 79,476.89 is: 109,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,306.58 : 175,609.99 = 79,476.89 : x
  2. Step 2: Convert to fraction form
    127,306.58/175,609.99 = 79,476.89/x
  3. Step 3: Cross multiply
    127,306.58x = 175,609.99 × 79,476.89
  4. Step 4: Simplify right side
    127,306.58x = 13,956,934,781.39
  5. Step 5: Solve for x
    x = 13,956,934,781.39/127,306.58
  6. Step 6: Final answer
    x = 109,632.47

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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.