Home / 140,077.08-210,154.50-77,791.32

Finding the Fourth Proportional to 140,077.08, 210,154.50 and 77,791.32

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Solution

The fourth proportional to 140,077.08, 210,154.50 and 77,791.32 is: 116,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,077.08 : 210,154.50 = 77,791.32 : x
  2. Step 2: Convert to fraction form
    140,077.08/210,154.50 = 77,791.32/x
  3. Step 3: Cross multiply
    140,077.08x = 210,154.50 × 77,791.32
  4. Step 4: Simplify right side
    140,077.08x = 16,348,195,958.94
  5. Step 5: Solve for x
    x = 16,348,195,958.94/140,077.08
  6. Step 6: Final answer
    x = 116,708.57

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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.