Home / 180,927.28-249,709.52-100,380.74

Finding the Fourth Proportional to 180,927.28, 249,709.52 and 100,380.74

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Solution

The fourth proportional to 180,927.28, 249,709.52 and 100,380.74 is: 138,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,927.28 : 249,709.52 = 100,380.74 : x
  2. Step 2: Convert to fraction form
    180,927.28/249,709.52 = 100,380.74/x
  3. Step 3: Cross multiply
    180,927.28x = 249,709.52 × 100,380.74
  4. Step 4: Simplify right side
    180,927.28x = 25,066,026,402.64
  5. Step 5: Solve for x
    x = 25,066,026,402.64/180,927.28
  6. Step 6: Final answer
    x = 138,542.00

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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.