Home / 180,723.79-249,387.55-100,146.61

Finding the Fourth Proportional to 180,723.79, 249,387.55 and 100,146.61

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Solution

The fourth proportional to 180,723.79, 249,387.55 and 100,146.61 is: 138,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,723.79 : 249,387.55 = 100,146.61 : x
  2. Step 2: Convert to fraction form
    180,723.79/249,387.55 = 100,146.61/x
  3. Step 3: Cross multiply
    180,723.79x = 249,387.55 × 100,146.61
  4. Step 4: Simplify right side
    180,723.79x = 24,975,317,708.71
  5. Step 5: Solve for x
    x = 24,975,317,708.71/180,723.79
  6. Step 6: Final answer
    x = 138,196.07

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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.