Home / 180,904.79-249,663.92-100,358.25

Finding the Fourth Proportional to 180,904.79, 249,663.92 and 100,358.25

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Solution

The fourth proportional to 180,904.79, 249,663.92 and 100,358.25 is: 138,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,904.79 : 249,663.92 = 100,358.25 : x
  2. Step 2: Convert to fraction form
    180,904.79/249,663.92 = 100,358.25/x
  3. Step 3: Cross multiply
    180,904.79x = 249,663.92 × 100,358.25
  4. Step 4: Simplify right side
    180,904.79x = 25,055,833,597.55
  5. Step 5: Solve for x
    x = 25,055,833,597.55/180,904.79
  6. Step 6: Final answer
    x = 138,502.88

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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.