Home / 185,582.88-278,412.24-78,966.72

Finding the Fourth Proportional to 185,582.88, 278,412.24 and 78,966.72

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Solution

The fourth proportional to 185,582.88, 278,412.24 and 78,966.72 is: 118,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,582.88 : 278,412.24 = 78,966.72 : x
  2. Step 2: Convert to fraction form
    185,582.88/278,412.24 = 78,966.72/x
  3. Step 3: Cross multiply
    185,582.88x = 278,412.24 × 78,966.72
  4. Step 4: Simplify right side
    185,582.88x = 21,985,301,400.65
  5. Step 5: Solve for x
    x = 21,985,301,400.65/185,582.88
  6. Step 6: Final answer
    x = 118,466.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.