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Finding the Fourth Proportional to 155,158.76, 213,674.58 and 147,693.80

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Solution

The fourth proportional to 155,158.76, 213,674.58 and 147,693.80 is: 203,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,158.76 : 213,674.58 = 147,693.80 : x
  2. Step 2: Convert to fraction form
    155,158.76/213,674.58 = 147,693.80/x
  3. Step 3: Cross multiply
    155,158.76x = 213,674.58 × 147,693.80
  4. Step 4: Simplify right side
    155,158.76x = 31,558,410,683.60
  5. Step 5: Solve for x
    x = 31,558,410,683.60/155,158.76
  6. Step 6: Final answer
    x = 203,394.32

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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.