Home / 148,574.11-205,031.05-80,590.91

Finding the Fourth Proportional to 148,574.11, 205,031.05 and 80,590.91

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Solution

The fourth proportional to 148,574.11, 205,031.05 and 80,590.91 is: 111,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,574.11 : 205,031.05 = 80,590.91 : x
  2. Step 2: Convert to fraction form
    148,574.11/205,031.05 = 80,590.91/x
  3. Step 3: Cross multiply
    148,574.11x = 205,031.05 × 80,590.91
  4. Step 4: Simplify right side
    148,574.11x = 16,523,638,897.76
  5. Step 5: Solve for x
    x = 16,523,638,897.76/148,574.11
  6. Step 6: Final answer
    x = 111,214.79

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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.