Home / 140,051.16-193,262.74-79,613.28

Finding the Fourth Proportional to 140,051.16, 193,262.74 and 79,613.28

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Solution

The fourth proportional to 140,051.16, 193,262.74 and 79,613.28 is: 109,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,051.16 : 193,262.74 = 79,613.28 : x
  2. Step 2: Convert to fraction form
    140,051.16/193,262.74 = 79,613.28/x
  3. Step 3: Cross multiply
    140,051.16x = 193,262.74 × 79,613.28
  4. Step 4: Simplify right side
    140,051.16x = 15,386,280,633.19
  5. Step 5: Solve for x
    x = 15,386,280,633.19/140,051.16
  6. Step 6: Final answer
    x = 109,861.86

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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.