Home / 134,432.10-201,405.15-78,226.20

Finding the Fourth Proportional to 134,432.10, 201,405.15 and 78,226.20

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Solution

The fourth proportional to 134,432.10, 201,405.15 and 78,226.20 is: 117,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,432.10 : 201,405.15 = 78,226.20 : x
  2. Step 2: Convert to fraction form
    134,432.10/201,405.15 = 78,226.20/x
  3. Step 3: Cross multiply
    134,432.10x = 201,405.15 × 78,226.20
  4. Step 4: Simplify right side
    134,432.10x = 15,755,159,544.93
  5. Step 5: Solve for x
    x = 15,755,159,544.93/134,432.10
  6. Step 6: Final answer
    x = 117,197.90

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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.