Home / 148,864.20-205,432.57-81,796.20

Finding the Fourth Proportional to 148,864.20, 205,432.57 and 81,796.20

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Solution

The fourth proportional to 148,864.20, 205,432.57 and 81,796.20 is: 112,878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,864.20 : 205,432.57 = 81,796.20 : x
  2. Step 2: Convert to fraction form
    148,864.20/205,432.57 = 81,796.20/x
  3. Step 3: Cross multiply
    148,864.20x = 205,432.57 × 81,796.20
  4. Step 4: Simplify right side
    148,864.20x = 16,803,603,582.23
  5. Step 5: Solve for x
    x = 16,803,603,582.23/148,864.20
  6. Step 6: Final answer
    x = 112,878.74

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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.