Home / 231,036.90-318,828.30-135,525.24

Finding the Fourth Proportional to 231,036.90, 318,828.30 and 135,525.24

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Solution

The fourth proportional to 231,036.90, 318,828.30 and 135,525.24 is: 187,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,036.90 : 318,828.30 = 135,525.24 : x
  2. Step 2: Convert to fraction form
    231,036.90/318,828.30 = 135,525.24/x
  3. Step 3: Cross multiply
    231,036.90x = 318,828.30 × 135,525.24
  4. Step 4: Simplify right side
    231,036.90x = 43,209,281,876.29
  5. Step 5: Solve for x
    x = 43,209,281,876.29/231,036.90
  6. Step 6: Final answer
    x = 187,023.29

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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.