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Finding the Fourth Proportional to 144,134.64, 216,201.96 and 65,247.12

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Solution

The fourth proportional to 144,134.64, 216,201.96 and 65,247.12 is: 97,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,134.64 : 216,201.96 = 65,247.12 : x
  2. Step 2: Convert to fraction form
    144,134.64/216,201.96 = 65,247.12/x
  3. Step 3: Cross multiply
    144,134.64x = 216,201.96 × 65,247.12
  4. Step 4: Simplify right side
    144,134.64x = 14,106,555,228.36
  5. Step 5: Solve for x
    x = 14,106,555,228.36/144,134.64
  6. Step 6: Final answer
    x = 97,870.68

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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.