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Finding the Fourth Proportional to 101,623.60, 152,143.80 and 89,959.60

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Solution

The fourth proportional to 101,623.60, 152,143.80 and 89,959.60 is: 134,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,623.60 : 152,143.80 = 89,959.60 : x
  2. Step 2: Convert to fraction form
    101,623.60/152,143.80 = 89,959.60/x
  3. Step 3: Cross multiply
    101,623.60x = 152,143.80 × 89,959.60
  4. Step 4: Simplify right side
    101,623.60x = 13,686,795,390.48
  5. Step 5: Solve for x
    x = 13,686,795,390.48/101,623.60
  6. Step 6: Final answer
    x = 134,681.27

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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.