Home / 180,899.26-249,656.32-100,352.74

Finding the Fourth Proportional to 180,899.26, 249,656.32 and 100,352.74

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Solution

The fourth proportional to 180,899.26, 249,656.32 and 100,352.74 is: 138,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,899.26 : 249,656.32 = 100,352.74 : x
  2. Step 2: Convert to fraction form
    180,899.26/249,656.32 = 100,352.74/x
  3. Step 3: Cross multiply
    180,899.26x = 249,656.32 × 100,352.74
  4. Step 4: Simplify right side
    180,899.26x = 25,053,695,770.32
  5. Step 5: Solve for x
    x = 25,053,695,770.32/180,899.26
  6. Step 6: Final answer
    x = 138,495.29

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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.