Home / 163,082.56-225,065.36-90,509.20

Finding the Fourth Proportional to 163,082.56, 225,065.36 and 90,509.20

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Solution

The fourth proportional to 163,082.56, 225,065.36 and 90,509.20 is: 124,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,082.56 : 225,065.36 = 90,509.20 : x
  2. Step 2: Convert to fraction form
    163,082.56/225,065.36 = 90,509.20/x
  3. Step 3: Cross multiply
    163,082.56x = 225,065.36 × 90,509.20
  4. Step 4: Simplify right side
    163,082.56x = 20,370,485,681.31
  5. Step 5: Solve for x
    x = 20,370,485,681.31/163,082.56
  6. Step 6: Final answer
    x = 124,909.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.