Home / 180,977.90-249,753.58-100,402.44

Finding the Fourth Proportional to 180,977.90, 249,753.58 and 100,402.44

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Solution

The fourth proportional to 180,977.90, 249,753.58 and 100,402.44 is: 138,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,977.90 : 249,753.58 = 100,402.44 : x
  2. Step 2: Convert to fraction form
    180,977.90/249,753.58 = 100,402.44/x
  3. Step 3: Cross multiply
    180,977.90x = 249,753.58 × 100,402.44
  4. Step 4: Simplify right side
    180,977.90x = 25,075,867,643.15
  5. Step 5: Solve for x
    x = 25,075,867,643.15/180,977.90
  6. Step 6: Final answer
    x = 138,557.63

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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.