Home / 180,920.56-249,660.18-100,342.30

Finding the Fourth Proportional to 180,920.56, 249,660.18 and 100,342.30

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Solution

The fourth proportional to 180,920.56, 249,660.18 and 100,342.30 is: 138,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,920.56 : 249,660.18 = 100,342.30 : x
  2. Step 2: Convert to fraction form
    180,920.56/249,660.18 = 100,342.30/x
  3. Step 3: Cross multiply
    180,920.56x = 249,660.18 × 100,342.30
  4. Step 4: Simplify right side
    180,920.56x = 25,051,476,679.61
  5. Step 5: Solve for x
    x = 25,051,476,679.61/180,920.56
  6. Step 6: Final answer
    x = 138,466.72

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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.