Home / 180,468.96-249,039.09-99,890.79

Finding the Fourth Proportional to 180,468.96, 249,039.09 and 99,890.79

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Solution

The fourth proportional to 180,468.96, 249,039.09 and 99,890.79 is: 137,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,468.96 : 249,039.09 = 99,890.79 : x
  2. Step 2: Convert to fraction form
    180,468.96/249,039.09 = 99,890.79/x
  3. Step 3: Cross multiply
    180,468.96x = 249,039.09 × 99,890.79
  4. Step 4: Simplify right side
    180,468.96x = 24,876,711,440.98
  5. Step 5: Solve for x
    x = 24,876,711,440.98/180,468.96
  6. Step 6: Final answer
    x = 137,844.82

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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.