Home / 140,306.10-193,615.15-76,631.59

Finding the Fourth Proportional to 140,306.10, 193,615.15 and 76,631.59

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Solution

The fourth proportional to 140,306.10, 193,615.15 and 76,631.59 is: 105,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.10 : 193,615.15 = 76,631.59 : x
  2. Step 2: Convert to fraction form
    140,306.10/193,615.15 = 76,631.59/x
  3. Step 3: Cross multiply
    140,306.10x = 193,615.15 × 76,631.59
  4. Step 4: Simplify right side
    140,306.10x = 14,837,036,792.59
  5. Step 5: Solve for x
    x = 14,837,036,792.59/140,306.10
  6. Step 6: Final answer
    x = 105,747.62

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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.