Home / 148,712.76-205,225.20-80,730.36

Finding the Fourth Proportional to 148,712.76, 205,225.20 and 80,730.36

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Solution

The fourth proportional to 148,712.76, 205,225.20 and 80,730.36 is: 111,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,712.76 : 205,225.20 = 80,730.36 : x
  2. Step 2: Convert to fraction form
    148,712.76/205,225.20 = 80,730.36/x
  3. Step 3: Cross multiply
    148,712.76x = 205,225.20 × 80,730.36
  4. Step 4: Simplify right side
    148,712.76x = 16,567,904,277.07
  5. Step 5: Solve for x
    x = 16,567,904,277.07/148,712.76
  6. Step 6: Final answer
    x = 111,408.76

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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.