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Finding the Fourth Proportional to 180,735.80, 249,415.40 and 100,175.43

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Solution

The fourth proportional to 180,735.80, 249,415.40 and 100,175.43 is: 138,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,735.80 : 249,415.40 = 100,175.43 : x
  2. Step 2: Convert to fraction form
    180,735.80/249,415.40 = 100,175.43/x
  3. Step 3: Cross multiply
    180,735.80x = 249,415.40 × 100,175.43
  4. Step 4: Simplify right side
    180,735.80x = 24,985,295,194.06
  5. Step 5: Solve for x
    x = 24,985,295,194.06/180,735.80
  6. Step 6: Final answer
    x = 138,242.10

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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.