Home / 134,648.12-202,030.64-72,245.72

Finding the Fourth Proportional to 134,648.12, 202,030.64 and 72,245.72

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Solution

The fourth proportional to 134,648.12, 202,030.64 and 72,245.72 is: 108,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,648.12 : 202,030.64 = 72,245.72 : x
  2. Step 2: Convert to fraction form
    134,648.12/202,030.64 = 72,245.72/x
  3. Step 3: Cross multiply
    134,648.12x = 202,030.64 × 72,245.72
  4. Step 4: Simplify right side
    134,648.12x = 14,595,847,677.48
  5. Step 5: Solve for x
    x = 14,595,847,677.48/134,648.12
  6. Step 6: Final answer
    x = 108,399.94

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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.