Home / 170,931.70-255,899.25-99,636.22

Finding the Fourth Proportional to 170,931.70, 255,899.25 and 99,636.22

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Solution

The fourth proportional to 170,931.70, 255,899.25 and 99,636.22 is: 149,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,931.70 : 255,899.25 = 99,636.22 : x
  2. Step 2: Convert to fraction form
    170,931.70/255,899.25 = 99,636.22/x
  3. Step 3: Cross multiply
    170,931.70x = 255,899.25 × 99,636.22
  4. Step 4: Simplify right side
    170,931.70x = 25,496,833,970.84
  5. Step 5: Solve for x
    x = 25,496,833,970.84/170,931.70
  6. Step 6: Final answer
    x = 149,163.87

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1.5x scale

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.