Home / 113,812.20-170,718.30-76,487.40

Finding the Fourth Proportional to 113,812.20, 170,718.30 and 76,487.40

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Solution

The fourth proportional to 113,812.20, 170,718.30 and 76,487.40 is: 114,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,812.20 : 170,718.30 = 76,487.40 : x
  2. Step 2: Convert to fraction form
    113,812.20/170,718.30 = 76,487.40/x
  3. Step 3: Cross multiply
    113,812.20x = 170,718.30 × 76,487.40
  4. Step 4: Simplify right side
    113,812.20x = 13,057,798,899.42
  5. Step 5: Solve for x
    x = 13,057,798,899.42/113,812.20
  6. Step 6: Final answer
    x = 114,731.10

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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.