Home / 210,086.04-315,269.10-108,977.28

Finding the Fourth Proportional to 210,086.04, 315,269.10 and 108,977.28

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Solution

The fourth proportional to 210,086.04, 315,269.10 and 108,977.28 is: 163,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,086.04 : 315,269.10 = 108,977.28 : x
  2. Step 2: Convert to fraction form
    210,086.04/315,269.10 = 108,977.28/x
  3. Step 3: Cross multiply
    210,086.04x = 315,269.10 × 108,977.28
  4. Step 4: Simplify right side
    210,086.04x = 34,357,168,986.05
  5. Step 5: Solve for x
    x = 34,357,168,986.05/210,086.04
  6. Step 6: Final answer
    x = 163,538.56

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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.