Home / 107,076.48-147,631.20-68,768.40

Finding the Fourth Proportional to 107,076.48, 147,631.20 and 68,768.40

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Solution

The fourth proportional to 107,076.48, 147,631.20 and 68,768.40 is: 94,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,076.48 : 147,631.20 = 68,768.40 : x
  2. Step 2: Convert to fraction form
    107,076.48/147,631.20 = 68,768.40/x
  3. Step 3: Cross multiply
    107,076.48x = 147,631.20 × 68,768.40
  4. Step 4: Simplify right side
    107,076.48x = 10,152,361,414.08
  5. Step 5: Solve for x
    x = 10,152,361,414.08/107,076.48
  6. Step 6: Final answer
    x = 94,814.11

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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.