Home / 109,521.12-151,139.04-59,220

Finding the Fourth Proportional to 109,521.12, 151,139.04 and 59,220

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Solution

The fourth proportional to 109,521.12, 151,139.04 and 59,220 is: 81,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,521.12 : 151,139.04 = 59,220 : x
  2. Step 2: Convert to fraction form
    109,521.12/151,139.04 = 59,220/x
  3. Step 3: Cross multiply
    109,521.12x = 151,139.04 × 59,220
  4. Step 4: Simplify right side
    109,521.12x = 8,950,453,948.80
  5. Step 5: Solve for x
    x = 8,950,453,948.80/109,521.12
  6. Step 6: Final answer
    x = 81,723.54

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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.