Home / 181,140.08-249,981.36-100,568.72

Finding the Fourth Proportional to 181,140.08, 249,981.36 and 100,568.72

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Solution

The fourth proportional to 181,140.08, 249,981.36 and 100,568.72 is: 138,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,140.08 : 249,981.36 = 100,568.72 : x
  2. Step 2: Convert to fraction form
    181,140.08/249,981.36 = 100,568.72/x
  3. Step 3: Cross multiply
    181,140.08x = 249,981.36 × 100,568.72
  4. Step 4: Simplify right side
    181,140.08x = 25,140,305,399.06
  5. Step 5: Solve for x
    x = 25,140,305,399.06/181,140.08
  6. Step 6: Final answer
    x = 138,789.30

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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.