Home / 147,021.24-220,407.30-58,337.40

Finding the Fourth Proportional to 147,021.24, 220,407.30 and 58,337.40

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Solution

The fourth proportional to 147,021.24, 220,407.30 and 58,337.40 is: 87,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,021.24 : 220,407.30 = 58,337.40 : x
  2. Step 2: Convert to fraction form
    147,021.24/220,407.30 = 58,337.40/x
  3. Step 3: Cross multiply
    147,021.24x = 220,407.30 × 58,337.40
  4. Step 4: Simplify right side
    147,021.24x = 12,857,988,823.02
  5. Step 5: Solve for x
    x = 12,857,988,823.02/147,021.24
  6. Step 6: Final answer
    x = 87,456.68

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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.