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Finding the Fourth Proportional to 97,161.60, 134,080.32 and 54,719.20

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Solution

The fourth proportional to 97,161.60, 134,080.32 and 54,719.20 is: 75,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,161.60 : 134,080.32 = 54,719.20 : x
  2. Step 2: Convert to fraction form
    97,161.60/134,080.32 = 54,719.20/x
  3. Step 3: Cross multiply
    97,161.60x = 134,080.32 × 54,719.20
  4. Step 4: Simplify right side
    97,161.60x = 7,336,767,846.14
  5. Step 5: Solve for x
    x = 7,336,767,846.14/97,161.60
  6. Step 6: Final answer
    x = 75,510.98

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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.