Home / 134,845.20-202,267.80-84,981.60

Finding the Fourth Proportional to 134,845.20, 202,267.80 and 84,981.60

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Solution

The fourth proportional to 134,845.20, 202,267.80 and 84,981.60 is: 127,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,845.20 : 202,267.80 = 84,981.60 : x
  2. Step 2: Convert to fraction form
    134,845.20/202,267.80 = 84,981.60/x
  3. Step 3: Cross multiply
    134,845.20x = 202,267.80 × 84,981.60
  4. Step 4: Simplify right side
    134,845.20x = 17,189,041,272.48
  5. Step 5: Solve for x
    x = 17,189,041,272.48/134,845.20
  6. Step 6: Final answer
    x = 127,472.40

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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.