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Finding the Fourth Proportional to 146,055.52, 201,557.22 and 78,987.52

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Solution

The fourth proportional to 146,055.52, 201,557.22 and 78,987.52 is: 109,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,055.52 : 201,557.22 = 78,987.52 : x
  2. Step 2: Convert to fraction form
    146,055.52/201,557.22 = 78,987.52/x
  3. Step 3: Cross multiply
    146,055.52x = 201,557.22 × 78,987.52
  4. Step 4: Simplify right side
    146,055.52x = 15,920,504,901.64
  5. Step 5: Solve for x
    x = 15,920,504,901.64/146,055.52
  6. Step 6: Final answer
    x = 109,003.10

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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.