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Finding the Fourth Proportional to 110,357.74, 152,325.81 and 72,122.86

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Solution

The fourth proportional to 110,357.74, 152,325.81 and 72,122.86 is: 99,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,357.74 : 152,325.81 = 72,122.86 : x
  2. Step 2: Convert to fraction form
    110,357.74/152,325.81 = 72,122.86/x
  3. Step 3: Cross multiply
    110,357.74x = 152,325.81 × 72,122.86
  4. Step 4: Simplify right side
    110,357.74x = 10,986,173,069.02
  5. Step 5: Solve for x
    x = 10,986,173,069.02/110,357.74
  6. Step 6: Final answer
    x = 99,550.54

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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.