Home / 217,934.60-326,837.10-84,738.20

Finding the Fourth Proportional to 217,934.60, 326,837.10 and 84,738.20

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Solution

The fourth proportional to 217,934.60, 326,837.10 and 84,738.20 is: 127,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,934.60 : 326,837.10 = 84,738.20 : x
  2. Step 2: Convert to fraction form
    217,934.60/326,837.10 = 84,738.20/x
  3. Step 3: Cross multiply
    217,934.60x = 326,837.10 × 84,738.20
  4. Step 4: Simplify right side
    217,934.60x = 27,695,587,547.22
  5. Step 5: Solve for x
    x = 27,695,587,547.22/217,934.60
  6. Step 6: Final answer
    x = 127,082.10

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1.5x scale

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.