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Finding the Fourth Proportional to 140,528.58, 210,793.23 and 57,422.58

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Solution

The fourth proportional to 140,528.58, 210,793.23 and 57,422.58 is: 86,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.58 : 210,793.23 = 57,422.58 : x
  2. Step 2: Convert to fraction form
    140,528.58/210,793.23 = 57,422.58/x
  3. Step 3: Cross multiply
    140,528.58x = 210,793.23 × 57,422.58
  4. Step 4: Simplify right side
    140,528.58x = 12,104,291,113.13
  5. Step 5: Solve for x
    x = 12,104,291,113.13/140,528.58
  6. Step 6: Final answer
    x = 86,134.02

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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.