Home / 123,922.50-171,012.45-70,207.40

Finding the Fourth Proportional to 123,922.50, 171,012.45 and 70,207.40

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Solution

The fourth proportional to 123,922.50, 171,012.45 and 70,207.40 is: 96,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,922.50 : 171,012.45 = 70,207.40 : x
  2. Step 2: Convert to fraction form
    123,922.50/171,012.45 = 70,207.40/x
  3. Step 3: Cross multiply
    123,922.50x = 171,012.45 × 70,207.40
  4. Step 4: Simplify right side
    123,922.50x = 12,006,339,482.13
  5. Step 5: Solve for x
    x = 12,006,339,482.13/123,922.50
  6. Step 6: Final answer
    x = 96,885.87

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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.