Home / 140,147.10-210,415.05-87,659.10

Finding the Fourth Proportional to 140,147.10, 210,415.05 and 87,659.10

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Solution

The fourth proportional to 140,147.10, 210,415.05 and 87,659.10 is: 131,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,147.10 : 210,415.05 = 87,659.10 : x
  2. Step 2: Convert to fraction form
    140,147.10/210,415.05 = 87,659.10/x
  3. Step 3: Cross multiply
    140,147.10x = 210,415.05 × 87,659.10
  4. Step 4: Simplify right side
    140,147.10x = 18,444,793,909.46
  5. Step 5: Solve for x
    x = 18,444,793,909.46/140,147.10
  6. Step 6: Final answer
    x = 131,610.24

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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.