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Finding the Fourth Proportional to 134,863.80, 202,271.40 and 84,854.40

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Solution

The fourth proportional to 134,863.80, 202,271.40 and 84,854.40 is: 127,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,863.80 : 202,271.40 = 84,854.40 : x
  2. Step 2: Convert to fraction form
    134,863.80/202,271.40 = 84,854.40/x
  3. Step 3: Cross multiply
    134,863.80x = 202,271.40 × 84,854.40
  4. Step 4: Simplify right side
    134,863.80x = 17,163,618,284.16
  5. Step 5: Solve for x
    x = 17,163,618,284.16/134,863.80
  6. Step 6: Final answer
    x = 127,266.31

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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.