Home / 140,187.23-210,280.82-77,406.53

Finding the Fourth Proportional to 140,187.23, 210,280.82 and 77,406.53

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Solution

The fourth proportional to 140,187.23, 210,280.82 and 77,406.53 is: 116,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,187.23 : 210,280.82 = 77,406.53 : x
  2. Step 2: Convert to fraction form
    140,187.23/210,280.82 = 77,406.53/x
  3. Step 3: Cross multiply
    140,187.23x = 210,280.82 × 77,406.53
  4. Step 4: Simplify right side
    140,187.23x = 16,277,108,214.72
  5. Step 5: Solve for x
    x = 16,277,108,214.72/140,187.23
  6. Step 6: Final answer
    x = 116,109.78

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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.