Home / 180,815.93-249,531.90-100,250.95

Finding the Fourth Proportional to 180,815.93, 249,531.90 and 100,250.95

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Solution

The fourth proportional to 180,815.93, 249,531.90 and 100,250.95 is: 138,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,815.93 : 249,531.90 = 100,250.95 : x
  2. Step 2: Convert to fraction form
    180,815.93/249,531.90 = 100,250.95/x
  3. Step 3: Cross multiply
    180,815.93x = 249,531.90 × 100,250.95
  4. Step 4: Simplify right side
    180,815.93x = 25,015,810,030.31
  5. Step 5: Solve for x
    x = 25,015,810,030.31/180,815.93
  6. Step 6: Final answer
    x = 138,349.59

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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.