Home / 170,828.20-256,473.15-99,823.60

Finding the Fourth Proportional to 170,828.20, 256,473.15 and 99,823.60

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Solution

The fourth proportional to 170,828.20, 256,473.15 and 99,823.60 is: 149,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,828.20 : 256,473.15 = 99,823.60 : x
  2. Step 2: Convert to fraction form
    170,828.20/256,473.15 = 99,823.60/x
  3. Step 3: Cross multiply
    170,828.20x = 256,473.15 × 99,823.60
  4. Step 4: Simplify right side
    170,828.20x = 25,602,073,136.34
  5. Step 5: Solve for x
    x = 25,602,073,136.34/170,828.20
  6. Step 6: Final answer
    x = 149,870.30

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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.