Home / 140,349.69-193,680.27-76,686.12

Finding the Fourth Proportional to 140,349.69, 193,680.27 and 76,686.12

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Solution

The fourth proportional to 140,349.69, 193,680.27 and 76,686.12 is: 105,825.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,349.69 : 193,680.27 = 76,686.12 : x
  2. Step 2: Convert to fraction form
    140,349.69/193,680.27 = 76,686.12/x
  3. Step 3: Cross multiply
    140,349.69x = 193,680.27 × 76,686.12
  4. Step 4: Simplify right side
    140,349.69x = 14,852,588,426.85
  5. Step 5: Solve for x
    x = 14,852,588,426.85/140,349.69
  6. Step 6: Final answer
    x = 105,825.59

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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.