Home / 170,112.49-255,158.40-75,315.02

Finding the Fourth Proportional to 170,112.49, 255,158.40 and 75,315.02

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Solution

The fourth proportional to 170,112.49, 255,158.40 and 75,315.02 is: 112,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,112.49 : 255,158.40 = 75,315.02 : x
  2. Step 2: Convert to fraction form
    170,112.49/255,158.40 = 75,315.02/x
  3. Step 3: Cross multiply
    170,112.49x = 255,158.40 × 75,315.02
  4. Step 4: Simplify right side
    170,112.49x = 19,217,259,005.81
  5. Step 5: Solve for x
    x = 19,217,259,005.81/170,112.49
  6. Step 6: Final answer
    x = 112,967.95

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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.