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Finding the Fourth Proportional to 153,904.80, 230,727.60 and 80,032.80

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Solution

The fourth proportional to 153,904.80, 230,727.60 and 80,032.80 is: 119,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,904.80 : 230,727.60 = 80,032.80 : x
  2. Step 2: Convert to fraction form
    153,904.80/230,727.60 = 80,032.80/x
  3. Step 3: Cross multiply
    153,904.80x = 230,727.60 × 80,032.80
  4. Step 4: Simplify right side
    153,904.80x = 18,465,775,865.28
  5. Step 5: Solve for x
    x = 18,465,775,865.28/153,904.80
  6. Step 6: Final answer
    x = 119,981.81

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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.