Home / 99,153.60-136,794.32-65,180.40

Finding the Fourth Proportional to 99,153.60, 136,794.32 and 65,180.40

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Solution

The fourth proportional to 99,153.60, 136,794.32 and 65,180.40 is: 89,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,153.60 : 136,794.32 = 65,180.40 : x
  2. Step 2: Convert to fraction form
    99,153.60/136,794.32 = 65,180.40/x
  3. Step 3: Cross multiply
    99,153.60x = 136,794.32 × 65,180.40
  4. Step 4: Simplify right side
    99,153.60x = 8,916,308,495.33
  5. Step 5: Solve for x
    x = 8,916,308,495.33/99,153.60
  6. Step 6: Final answer
    x = 89,924.20

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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.