Home / 155,631.22-233,519.72-76,702.40

Finding the Fourth Proportional to 155,631.22, 233,519.72 and 76,702.40

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Solution

The fourth proportional to 155,631.22, 233,519.72 and 76,702.40 is: 115,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,631.22 : 233,519.72 = 76,702.40 : x
  2. Step 2: Convert to fraction form
    155,631.22/233,519.72 = 76,702.40/x
  3. Step 3: Cross multiply
    155,631.22x = 233,519.72 × 76,702.40
  4. Step 4: Simplify right side
    155,631.22x = 17,911,522,971.33
  5. Step 5: Solve for x
    x = 17,911,522,971.33/155,631.22
  6. Step 6: Final answer
    x = 115,089.52

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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.