Home / 113,428.80-170,143.20-30,322.80

Finding the Fourth Proportional to 113,428.80, 170,143.20 and 30,322.80

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Solution

The fourth proportional to 113,428.80, 170,143.20 and 30,322.80 is: 45,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,428.80 : 170,143.20 = 30,322.80 : x
  2. Step 2: Convert to fraction form
    113,428.80/170,143.20 = 30,322.80/x
  3. Step 3: Cross multiply
    113,428.80x = 170,143.20 × 30,322.80
  4. Step 4: Simplify right side
    113,428.80x = 5,159,218,224.96
  5. Step 5: Solve for x
    x = 5,159,218,224.96/113,428.80
  6. Step 6: Final answer
    x = 45,484.20

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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.