Home / 155,530.72-233,287.84-76,618.30

Finding the Fourth Proportional to 155,530.72, 233,287.84 and 76,618.30

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Solution

The fourth proportional to 155,530.72, 233,287.84 and 76,618.30 is: 114,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,530.72 : 233,287.84 = 76,618.30 : x
  2. Step 2: Convert to fraction form
    155,530.72/233,287.84 = 76,618.30/x
  3. Step 3: Cross multiply
    155,530.72x = 233,287.84 × 76,618.30
  4. Step 4: Simplify right side
    155,530.72x = 17,874,117,711.47
  5. Step 5: Solve for x
    x = 17,874,117,711.47/155,530.72
  6. Step 6: Final answer
    x = 114,923.39

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1.5x scale

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.