Home / 157,659.10-236,488.65-74,715.10

Finding the Fourth Proportional to 157,659.10, 236,488.65 and 74,715.10

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Solution

The fourth proportional to 157,659.10, 236,488.65 and 74,715.10 is: 112,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,659.10 : 236,488.65 = 74,715.10 : x
  2. Step 2: Convert to fraction form
    157,659.10/236,488.65 = 74,715.10/x
  3. Step 3: Cross multiply
    157,659.10x = 236,488.65 × 74,715.10
  4. Step 4: Simplify right side
    157,659.10x = 17,669,273,133.62
  5. Step 5: Solve for x
    x = 17,669,273,133.62/157,659.10
  6. Step 6: Final answer
    x = 112,072.65

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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.