Home / 140,818.16-210,955.05-78,299.12

Finding the Fourth Proportional to 140,818.16, 210,955.05 and 78,299.12

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Solution

The fourth proportional to 140,818.16, 210,955.05 and 78,299.12 is: 117,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,818.16 : 210,955.05 = 78,299.12 : x
  2. Step 2: Convert to fraction form
    140,818.16/210,955.05 = 78,299.12/x
  3. Step 3: Cross multiply
    140,818.16x = 210,955.05 × 78,299.12
  4. Step 4: Simplify right side
    140,818.16x = 16,517,595,301.94
  5. Step 5: Solve for x
    x = 16,517,595,301.94/140,818.16
  6. Step 6: Final answer
    x = 117,297.34

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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.