Home / 140,275.44-193,586.40-76,613.76

Finding the Fourth Proportional to 140,275.44, 193,586.40 and 76,613.76

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Solution

The fourth proportional to 140,275.44, 193,586.40 and 76,613.76 is: 105,730.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,275.44 : 193,586.40 = 76,613.76 : x
  2. Step 2: Convert to fraction form
    140,275.44/193,586.40 = 76,613.76/x
  3. Step 3: Cross multiply
    140,275.44x = 193,586.40 × 76,613.76
  4. Step 4: Simplify right side
    140,275.44x = 14,831,381,988.86
  5. Step 5: Solve for x
    x = 14,831,381,988.86/140,275.44
  6. Step 6: Final answer
    x = 105,730.43

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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.