Home / 102,684.16-154,031.68-28,817.92

Finding the Fourth Proportional to 102,684.16, 154,031.68 and 28,817.92

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Solution

The fourth proportional to 102,684.16, 154,031.68 and 28,817.92 is: 43,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,684.16 : 154,031.68 = 28,817.92 : x
  2. Step 2: Convert to fraction form
    102,684.16/154,031.68 = 28,817.92/x
  3. Step 3: Cross multiply
    102,684.16x = 154,031.68 × 28,817.92
  4. Step 4: Simplify right side
    102,684.16x = 4,438,872,631.71
  5. Step 5: Solve for x
    x = 4,438,872,631.71/102,684.16
  6. Step 6: Final answer
    x = 43,228.41

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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.