Home / 163,845.80-245,574.30-84,919.40

Finding the Fourth Proportional to 163,845.80, 245,574.30 and 84,919.40

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Solution

The fourth proportional to 163,845.80, 245,574.30 and 84,919.40 is: 127,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,845.80 : 245,574.30 = 84,919.40 : x
  2. Step 2: Convert to fraction form
    163,845.80/245,574.30 = 84,919.40/x
  3. Step 3: Cross multiply
    163,845.80x = 245,574.30 × 84,919.40
  4. Step 4: Simplify right side
    163,845.80x = 20,854,022,211.42
  5. Step 5: Solve for x
    x = 20,854,022,211.42/163,845.80
  6. Step 6: Final answer
    x = 127,278.34

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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.