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Finding the Fourth Proportional to 155,891.71, 233,837.57 and 89,285.68

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Solution

The fourth proportional to 155,891.71, 233,837.57 and 89,285.68 is: 133,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,891.71 : 233,837.57 = 89,285.68 : x
  2. Step 2: Convert to fraction form
    155,891.71/233,837.57 = 89,285.68/x
  3. Step 3: Cross multiply
    155,891.71x = 233,837.57 × 89,285.68
  4. Step 4: Simplify right side
    155,891.71x = 20,878,346,447.00
  5. Step 5: Solve for x
    x = 20,878,346,447.00/155,891.71
  6. Step 6: Final answer
    x = 133,928.52

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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.