Home / 113,428.13-170,142.21-30,322.13

Finding the Fourth Proportional to 113,428.13, 170,142.21 and 30,322.13

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Solution

The fourth proportional to 113,428.13, 170,142.21 and 30,322.13 is: 45,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,428.13 : 170,142.21 = 30,322.13 : x
  2. Step 2: Convert to fraction form
    113,428.13/170,142.21 = 30,322.13/x
  3. Step 3: Cross multiply
    113,428.13x = 170,142.21 × 30,322.13
  4. Step 4: Simplify right side
    113,428.13x = 5,159,073,359.40
  5. Step 5: Solve for x
    x = 5,159,073,359.40/113,428.13
  6. Step 6: Final answer
    x = 45,483.19

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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.