Home / 153,985.53-231,000.16-47,378.31

Finding the Fourth Proportional to 153,985.53, 231,000.16 and 47,378.31

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Solution

The fourth proportional to 153,985.53, 231,000.16 and 47,378.31 is: 71,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,985.53 : 231,000.16 = 47,378.31 : x
  2. Step 2: Convert to fraction form
    153,985.53/231,000.16 = 47,378.31/x
  3. Step 3: Cross multiply
    153,985.53x = 231,000.16 × 47,378.31
  4. Step 4: Simplify right side
    153,985.53x = 10,944,397,190.53
  5. Step 5: Solve for x
    x = 10,944,397,190.53/153,985.53
  6. Step 6: Final answer
    x = 71,074.19

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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.