Home / 185,586.84-278,421.12-78,965.10

Finding the Fourth Proportional to 185,586.84, 278,421.12 and 78,965.10

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Solution

The fourth proportional to 185,586.84, 278,421.12 and 78,965.10 is: 118,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,586.84 : 278,421.12 = 78,965.10 : x
  2. Step 2: Convert to fraction form
    185,586.84/278,421.12 = 78,965.10/x
  3. Step 3: Cross multiply
    185,586.84x = 278,421.12 × 78,965.10
  4. Step 4: Simplify right side
    185,586.84x = 21,985,551,582.91
  5. Step 5: Solve for x
    x = 21,985,551,582.91/185,586.84
  6. Step 6: Final answer
    x = 118,465.04

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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.