Home / 245,117.90-367,677.14-76,639.11

Finding the Fourth Proportional to 245,117.90, 367,677.14 and 76,639.11

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Solution

The fourth proportional to 245,117.90, 367,677.14 and 76,639.11 is: 114,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,117.90 : 367,677.14 = 76,639.11 : x
  2. Step 2: Convert to fraction form
    245,117.90/367,677.14 = 76,639.11/x
  3. Step 3: Cross multiply
    245,117.90x = 367,677.14 × 76,639.11
  4. Step 4: Simplify right side
    245,117.90x = 28,178,448,776.95
  5. Step 5: Solve for x
    x = 28,178,448,776.95/245,117.90
  6. Step 6: Final answer
    x = 114,958.76

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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.