Home / 149,999.06-207,017.74-85,491.48

Finding the Fourth Proportional to 149,999.06, 207,017.74 and 85,491.48

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Solution

The fourth proportional to 149,999.06, 207,017.74 and 85,491.48 is: 117,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.06 : 207,017.74 = 85,491.48 : x
  2. Step 2: Convert to fraction form
    149,999.06/207,017.74 = 85,491.48/x
  3. Step 3: Cross multiply
    149,999.06x = 207,017.74 × 85,491.48
  4. Step 4: Simplify right side
    149,999.06x = 17,698,252,978.86
  5. Step 5: Solve for x
    x = 17,698,252,978.86/149,999.06
  6. Step 6: Final answer
    x = 117,989.10

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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.