Home / 180,828.32-249,542.66-100,253.77

Finding the Fourth Proportional to 180,828.32, 249,542.66 and 100,253.77

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Solution

The fourth proportional to 180,828.32, 249,542.66 and 100,253.77 is: 138,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,828.32 : 249,542.66 = 100,253.77 : x
  2. Step 2: Convert to fraction form
    180,828.32/249,542.66 = 100,253.77/x
  3. Step 3: Cross multiply
    180,828.32x = 249,542.66 × 100,253.77
  4. Step 4: Simplify right side
    180,828.32x = 25,017,592,067.61
  5. Step 5: Solve for x
    x = 25,017,592,067.61/180,828.32
  6. Step 6: Final answer
    x = 138,349.97

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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.