Home / 140,057.50-193,281.98-76,397.57

Finding the Fourth Proportional to 140,057.50, 193,281.98 and 76,397.57

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Solution

The fourth proportional to 140,057.50, 193,281.98 and 76,397.57 is: 105,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,057.50 : 193,281.98 = 76,397.57 : x
  2. Step 2: Convert to fraction form
    140,057.50/193,281.98 = 76,397.57/x
  3. Step 3: Cross multiply
    140,057.50x = 193,281.98 × 76,397.57
  4. Step 4: Simplify right side
    140,057.50x = 14,766,273,596.79
  5. Step 5: Solve for x
    x = 14,766,273,596.79/140,057.50
  6. Step 6: Final answer
    x = 105,430.08

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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.