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Finding the Fourth Proportional to 180,647.57, 249,295.57 and 100,079.85

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Solution

The fourth proportional to 180,647.57, 249,295.57 and 100,079.85 is: 138,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,647.57 : 249,295.57 = 100,079.85 : x
  2. Step 2: Convert to fraction form
    180,647.57/249,295.57 = 100,079.85/x
  3. Step 3: Cross multiply
    180,647.57x = 249,295.57 × 100,079.85
  4. Step 4: Simplify right side
    180,647.57x = 24,949,464,498.87
  5. Step 5: Solve for x
    x = 24,949,464,498.87/180,647.57
  6. Step 6: Final answer
    x = 138,111.27

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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.