Home / 102,682.28-154,078.55-42,752.12

Finding the Fourth Proportional to 102,682.28, 154,078.55 and 42,752.12

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Solution

The fourth proportional to 102,682.28, 154,078.55 and 42,752.12 is: 64,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,682.28 : 154,078.55 = 42,752.12 : x
  2. Step 2: Convert to fraction form
    102,682.28/154,078.55 = 42,752.12/x
  3. Step 3: Cross multiply
    102,682.28x = 154,078.55 × 42,752.12
  4. Step 4: Simplify right side
    102,682.28x = 6,587,185,151.10
  5. Step 5: Solve for x
    x = 6,587,185,151.10/102,682.28
  6. Step 6: Final answer
    x = 64,151.14

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1.5x scale

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.