Home / 212,715.38-293,543.46-115,920.10

Finding the Fourth Proportional to 212,715.38, 293,543.46 and 115,920.10

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Solution

The fourth proportional to 212,715.38, 293,543.46 and 115,920.10 is: 159,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,715.38 : 293,543.46 = 115,920.10 : x
  2. Step 2: Convert to fraction form
    212,715.38/293,543.46 = 115,920.10/x
  3. Step 3: Cross multiply
    212,715.38x = 293,543.46 × 115,920.10
  4. Step 4: Simplify right side
    212,715.38x = 34,027,587,237.55
  5. Step 5: Solve for x
    x = 34,027,587,237.55/212,715.38
  6. Step 6: Final answer
    x = 159,967.69

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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.