Home / 107,543.10-161,314.65-103,460.70

Finding the Fourth Proportional to 107,543.10, 161,314.65 and 103,460.70

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Solution

The fourth proportional to 107,543.10, 161,314.65 and 103,460.70 is: 155,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,543.10 : 161,314.65 = 103,460.70 : x
  2. Step 2: Convert to fraction form
    107,543.10/161,314.65 = 103,460.70/x
  3. Step 3: Cross multiply
    107,543.10x = 161,314.65 × 103,460.70
  4. Step 4: Simplify right side
    107,543.10x = 16,689,726,609.26
  5. Step 5: Solve for x
    x = 16,689,726,609.26/107,543.10
  6. Step 6: Final answer
    x = 155,191.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.