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Finding the Fourth Proportional to 143,358.60, 215,081.10 and 101,886.60

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Solution

The fourth proportional to 143,358.60, 215,081.10 and 101,886.60 is: 152,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.60 : 215,081.10 = 101,886.60 : x
  2. Step 2: Convert to fraction form
    143,358.60/215,081.10 = 101,886.60/x
  3. Step 3: Cross multiply
    143,358.60x = 215,081.10 × 101,886.60
  4. Step 4: Simplify right side
    143,358.60x = 21,913,882,003.26
  5. Step 5: Solve for x
    x = 21,913,882,003.26/143,358.60
  6. Step 6: Final answer
    x = 152,860.60

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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.