Home / 180,715.28-249,363.48-100,138.92

Finding the Fourth Proportional to 180,715.28, 249,363.48 and 100,138.92

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Solution

The fourth proportional to 180,715.28, 249,363.48 and 100,138.92 is: 138,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,715.28 : 249,363.48 = 100,138.92 : x
  2. Step 2: Convert to fraction form
    180,715.28/249,363.48 = 100,138.92/x
  3. Step 3: Cross multiply
    180,715.28x = 249,363.48 × 100,138.92
  4. Step 4: Simplify right side
    180,715.28x = 24,970,989,574.64
  5. Step 5: Solve for x
    x = 24,970,989,574.64/180,715.28
  6. Step 6: Final answer
    x = 138,178.63

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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.