Home / 180,774.18-249,470.10-100,203.48

Finding the Fourth Proportional to 180,774.18, 249,470.10 and 100,203.48

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Solution

The fourth proportional to 180,774.18, 249,470.10 and 100,203.48 is: 138,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,774.18 : 249,470.10 = 100,203.48 : x
  2. Step 2: Convert to fraction form
    180,774.18/249,470.10 = 100,203.48/x
  3. Step 3: Cross multiply
    180,774.18x = 249,470.10 × 100,203.48
  4. Step 4: Simplify right side
    180,774.18x = 24,997,772,175.95
  5. Step 5: Solve for x
    x = 24,997,772,175.95/180,774.18
  6. Step 6: Final answer
    x = 138,281.76

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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.