Home / 154,603.76-231,938.75-47,985.49

Finding the Fourth Proportional to 154,603.76, 231,938.75 and 47,985.49

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Solution

The fourth proportional to 154,603.76, 231,938.75 and 47,985.49 is: 71,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,603.76 : 231,938.75 = 47,985.49 : x
  2. Step 2: Convert to fraction form
    154,603.76/231,938.75 = 47,985.49/x
  3. Step 3: Cross multiply
    154,603.76x = 231,938.75 × 47,985.49
  4. Step 4: Simplify right side
    154,603.76x = 11,129,694,108.85
  5. Step 5: Solve for x
    x = 11,129,694,108.85/154,603.76
  6. Step 6: Final answer
    x = 71,988.51

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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.