Home / 179,689.65-247,973.45-99,120.57

Finding the Fourth Proportional to 179,689.65, 247,973.45 and 99,120.57

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Solution

The fourth proportional to 179,689.65, 247,973.45 and 99,120.57 is: 136,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,689.65 : 247,973.45 = 99,120.57 : x
  2. Step 2: Convert to fraction form
    179,689.65/247,973.45 = 99,120.57/x
  3. Step 3: Cross multiply
    179,689.65x = 247,973.45 × 99,120.57
  4. Step 4: Simplify right side
    179,689.65x = 24,579,269,213.26
  5. Step 5: Solve for x
    x = 24,579,269,213.26/179,689.65
  6. Step 6: Final answer
    x = 136,787.34

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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.