Home / 111,359.12-167,048.40-28,253.12

Finding the Fourth Proportional to 111,359.12, 167,048.40 and 28,253.12

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Solution

The fourth proportional to 111,359.12, 167,048.40 and 28,253.12 is: 42,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,359.12 : 167,048.40 = 28,253.12 : x
  2. Step 2: Convert to fraction form
    111,359.12/167,048.40 = 28,253.12/x
  3. Step 3: Cross multiply
    111,359.12x = 167,048.40 × 28,253.12
  4. Step 4: Simplify right side
    111,359.12x = 4,719,638,491.01
  5. Step 5: Solve for x
    x = 4,719,638,491.01/111,359.12
  6. Step 6: Final answer
    x = 42,382.15

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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.