Home / 163,515.30-245,429.55-84,686.10

Finding the Fourth Proportional to 163,515.30, 245,429.55 and 84,686.10

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Solution

The fourth proportional to 163,515.30, 245,429.55 and 84,686.10 is: 127,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,515.30 : 245,429.55 = 84,686.10 : x
  2. Step 2: Convert to fraction form
    163,515.30/245,429.55 = 84,686.10/x
  3. Step 3: Cross multiply
    163,515.30x = 245,429.55 × 84,686.10
  4. Step 4: Simplify right side
    163,515.30x = 20,784,471,414.26
  5. Step 5: Solve for x
    x = 20,784,471,414.26/163,515.30
  6. Step 6: Final answer
    x = 127,110.25

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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.