Home / 180,818.15-249,536.95-100,240.56

Finding the Fourth Proportional to 180,818.15, 249,536.95 and 100,240.56

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Solution

The fourth proportional to 180,818.15, 249,536.95 and 100,240.56 is: 138,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,818.15 : 249,536.95 = 100,240.56 : x
  2. Step 2: Convert to fraction form
    180,818.15/249,536.95 = 100,240.56/x
  3. Step 3: Cross multiply
    180,818.15x = 249,536.95 × 100,240.56
  4. Step 4: Simplify right side
    180,818.15x = 25,013,723,608.69
  5. Step 5: Solve for x
    x = 25,013,723,608.69/180,818.15
  6. Step 6: Final answer
    x = 138,336.35

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1.5x scale

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.