Home / 212,722.08-319,082.77-98,807.59

Finding the Fourth Proportional to 212,722.08, 319,082.77 and 98,807.59

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Solution

The fourth proportional to 212,722.08, 319,082.77 and 98,807.59 is: 148,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,722.08 : 319,082.77 = 98,807.59 : x
  2. Step 2: Convert to fraction form
    212,722.08/319,082.77 = 98,807.59/x
  3. Step 3: Cross multiply
    212,722.08x = 319,082.77 × 98,807.59
  4. Step 4: Simplify right side
    212,722.08x = 31,527,799,514.22
  5. Step 5: Solve for x
    x = 31,527,799,514.22/212,722.08
  6. Step 6: Final answer
    x = 148,211.22

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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.