Home / 161,918.10-242,585.55-99,515.70

Finding the Fourth Proportional to 161,918.10, 242,585.55 and 99,515.70

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Solution

The fourth proportional to 161,918.10, 242,585.55 and 99,515.70 is: 149,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,918.10 : 242,585.55 = 99,515.70 : x
  2. Step 2: Convert to fraction form
    161,918.10/242,585.55 = 99,515.70/x
  3. Step 3: Cross multiply
    161,918.10x = 242,585.55 × 99,515.70
  4. Step 4: Simplify right side
    161,918.10x = 24,141,070,818.14
  5. Step 5: Solve for x
    x = 24,141,070,818.14/161,918.10
  6. Step 6: Final answer
    x = 149,094.33

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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.