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Finding the Fourth Proportional to 159,999.52, 220,679.60 and 111,603.93

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Solution

The fourth proportional to 159,999.52, 220,679.60 and 111,603.93 is: 153,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,999.52 : 220,679.60 = 111,603.93 : x
  2. Step 2: Convert to fraction form
    159,999.52/220,679.60 = 111,603.93/x
  3. Step 3: Cross multiply
    159,999.52x = 220,679.60 × 111,603.93
  4. Step 4: Simplify right side
    159,999.52x = 24,628,709,527.43
  5. Step 5: Solve for x
    x = 24,628,709,527.43/159,999.52
  6. Step 6: Final answer
    x = 153,929.90

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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.