Home / 140,646.24-210,823.56-87,934.68

Finding the Fourth Proportional to 140,646.24, 210,823.56 and 87,934.68

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Solution

The fourth proportional to 140,646.24, 210,823.56 and 87,934.68 is: 131,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,646.24 : 210,823.56 = 87,934.68 : x
  2. Step 2: Convert to fraction form
    140,646.24/210,823.56 = 87,934.68/x
  3. Step 3: Cross multiply
    140,646.24x = 210,823.56 × 87,934.68
  4. Step 4: Simplify right side
    140,646.24x = 18,538,702,285.06
  5. Step 5: Solve for x
    x = 18,538,702,285.06/140,646.24
  6. Step 6: Final answer
    x = 131,810.86

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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.