Home / 140,359.22-193,695.96-76,695.65

Finding the Fourth Proportional to 140,359.22, 193,695.96 and 76,695.65

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Solution

The fourth proportional to 140,359.22, 193,695.96 and 76,695.65 is: 105,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,359.22 : 193,695.96 = 76,695.65 : x
  2. Step 2: Convert to fraction form
    140,359.22/193,695.96 = 76,695.65/x
  3. Step 3: Cross multiply
    140,359.22x = 193,695.96 × 76,695.65
  4. Step 4: Simplify right side
    140,359.22x = 14,855,637,554.57
  5. Step 5: Solve for x
    x = 14,855,637,554.57/140,359.22
  6. Step 6: Final answer
    x = 105,840.13

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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.