Home / 150,215.06-207,319.55-85,683.98

Finding the Fourth Proportional to 150,215.06, 207,319.55 and 85,683.98

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Solution

The fourth proportional to 150,215.06, 207,319.55 and 85,683.98 is: 118,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,215.06 : 207,319.55 = 85,683.98 : x
  2. Step 2: Convert to fraction form
    150,215.06/207,319.55 = 85,683.98/x
  3. Step 3: Cross multiply
    150,215.06x = 207,319.55 × 85,683.98
  4. Step 4: Simplify right side
    150,215.06x = 17,763,962,710.79
  5. Step 5: Solve for x
    x = 17,763,962,710.79/150,215.06
  6. Step 6: Final answer
    x = 118,256.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.