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Finding the Fourth Proportional to 153,804.52, 212,255.32 and 89,268.92

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Solution

The fourth proportional to 153,804.52, 212,255.32 and 89,268.92 is: 123,194.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,804.52 : 212,255.32 = 89,268.92 : x
  2. Step 2: Convert to fraction form
    153,804.52/212,255.32 = 89,268.92/x
  3. Step 3: Cross multiply
    153,804.52x = 212,255.32 × 89,268.92
  4. Step 4: Simplify right side
    153,804.52x = 18,947,803,180.65
  5. Step 5: Solve for x
    x = 18,947,803,180.65/153,804.52
  6. Step 6: Final answer
    x = 123,194.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.