Home / 113,043.19-156,002.07-67,768.78

Finding the Fourth Proportional to 113,043.19, 156,002.07 and 67,768.78

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Solution

The fourth proportional to 113,043.19, 156,002.07 and 67,768.78 is: 93,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,043.19 : 156,002.07 = 67,768.78 : x
  2. Step 2: Convert to fraction form
    113,043.19/156,002.07 = 67,768.78/x
  3. Step 3: Cross multiply
    113,043.19x = 156,002.07 × 67,768.78
  4. Step 4: Simplify right side
    113,043.19x = 10,572,069,961.37
  5. Step 5: Solve for x
    x = 10,572,069,961.37/113,043.19
  6. Step 6: Final answer
    x = 93,522.40

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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.