Home / 113,439.42-170,159.12-30,331.26

Finding the Fourth Proportional to 113,439.42, 170,159.12 and 30,331.26

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Solution

The fourth proportional to 113,439.42, 170,159.12 and 30,331.26 is: 45,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,439.42 : 170,159.12 = 30,331.26 : x
  2. Step 2: Convert to fraction form
    113,439.42/170,159.12 = 30,331.26/x
  3. Step 3: Cross multiply
    113,439.42x = 170,159.12 × 30,331.26
  4. Step 4: Simplify right side
    113,439.42x = 5,161,140,510.09
  5. Step 5: Solve for x
    x = 5,161,140,510.09/113,439.42
  6. Step 6: Final answer
    x = 45,496.89

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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.