Home / 180,558.52-249,167.44-99,985.79

Finding the Fourth Proportional to 180,558.52, 249,167.44 and 99,985.79

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Solution

The fourth proportional to 180,558.52, 249,167.44 and 99,985.79 is: 137,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,558.52 : 249,167.44 = 99,985.79 : x
  2. Step 2: Convert to fraction form
    180,558.52/249,167.44 = 99,985.79/x
  3. Step 3: Cross multiply
    180,558.52x = 249,167.44 × 99,985.79
  4. Step 4: Simplify right side
    180,558.52x = 24,913,204,078.58
  5. Step 5: Solve for x
    x = 24,913,204,078.58/180,558.52
  6. Step 6: Final answer
    x = 137,978.56

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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.