Home / 123,384.08-170,263.14-69,680

Finding the Fourth Proportional to 123,384.08, 170,263.14 and 69,680

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Solution

The fourth proportional to 123,384.08, 170,263.14 and 69,680 is: 96,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.08 : 170,263.14 = 69,680 : x
  2. Step 2: Convert to fraction form
    123,384.08/170,263.14 = 69,680/x
  3. Step 3: Cross multiply
    123,384.08x = 170,263.14 × 69,680
  4. Step 4: Simplify right side
    123,384.08x = 11,863,935,595.20
  5. Step 5: Solve for x
    x = 11,863,935,595.20/123,384.08
  6. Step 6: Final answer
    x = 96,154.51

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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.