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Finding the Fourth Proportional to 155,365.80, 214,176.60 and 109,903.80

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Solution

The fourth proportional to 155,365.80, 214,176.60 and 109,903.80 is: 151,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,365.80 : 214,176.60 = 109,903.80 : x
  2. Step 2: Convert to fraction form
    155,365.80/214,176.60 = 109,903.80/x
  3. Step 3: Cross multiply
    155,365.80x = 214,176.60 × 109,903.80
  4. Step 4: Simplify right side
    155,365.80x = 23,538,822,211.08
  5. Step 5: Solve for x
    x = 23,538,822,211.08/155,365.80
  6. Step 6: Final answer
    x = 151,505.82

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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.