Home / 140,582.80-194,001.24-76,920.40

Finding the Fourth Proportional to 140,582.80, 194,001.24 and 76,920.40

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Solution

The fourth proportional to 140,582.80, 194,001.24 and 76,920.40 is: 106,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,582.80 : 194,001.24 = 76,920.40 : x
  2. Step 2: Convert to fraction form
    140,582.80/194,001.24 = 76,920.40/x
  3. Step 3: Cross multiply
    140,582.80x = 194,001.24 × 76,920.40
  4. Step 4: Simplify right side
    140,582.80x = 14,922,652,981.30
  5. Step 5: Solve for x
    x = 14,922,652,981.30/140,582.80
  6. Step 6: Final answer
    x = 106,148.50

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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.