Home / 180,966.35-249,733.85-100,393.87

Finding the Fourth Proportional to 180,966.35, 249,733.85 and 100,393.87

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Solution

The fourth proportional to 180,966.35, 249,733.85 and 100,393.87 is: 138,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,966.35 : 249,733.85 = 100,393.87 : x
  2. Step 2: Convert to fraction form
    180,966.35/249,733.85 = 100,393.87/x
  3. Step 3: Cross multiply
    180,966.35x = 249,733.85 × 100,393.87
  4. Step 4: Simplify right side
    180,966.35x = 25,071,747,671.50
  5. Step 5: Solve for x
    x = 25,071,747,671.50/180,966.35
  6. Step 6: Final answer
    x = 138,543.70

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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.