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Finding the Fourth Proportional to 88,908.40, 133,362.60 and 74,911.60

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Solution

The fourth proportional to 88,908.40, 133,362.60 and 74,911.60 is: 112,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,908.40 : 133,362.60 = 74,911.60 : x
  2. Step 2: Convert to fraction form
    88,908.40/133,362.60 = 74,911.60/x
  3. Step 3: Cross multiply
    88,908.40x = 133,362.60 × 74,911.60
  4. Step 4: Simplify right side
    88,908.40x = 9,990,405,746.16
  5. Step 5: Solve for x
    x = 9,990,405,746.16/88,908.40
  6. Step 6: Final answer
    x = 112,367.40

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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.