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Finding the Fourth Proportional to 143,357.60, 215,079.60 and 101,885.60

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Solution

The fourth proportional to 143,357.60, 215,079.60 and 101,885.60 is: 152,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,357.60 : 215,079.60 = 101,885.60 : x
  2. Step 2: Convert to fraction form
    143,357.60/215,079.60 = 101,885.60/x
  3. Step 3: Cross multiply
    143,357.60x = 215,079.60 × 101,885.60
  4. Step 4: Simplify right side
    143,357.60x = 21,913,514,093.76
  5. Step 5: Solve for x
    x = 21,913,514,093.76/143,357.60
  6. Step 6: Final answer
    x = 152,859.10

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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.