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Finding the Fourth Proportional to 164,138.19, 226,510.71 and 88,686.69

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Solution

The fourth proportional to 164,138.19, 226,510.71 and 88,686.69 is: 122,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,138.19 : 226,510.71 = 88,686.69 : x
  2. Step 2: Convert to fraction form
    164,138.19/226,510.71 = 88,686.69/x
  3. Step 3: Cross multiply
    164,138.19x = 226,510.71 × 88,686.69
  4. Step 4: Simplify right side
    164,138.19x = 20,088,485,464.01
  5. Step 5: Solve for x
    x = 20,088,485,464.01/164,138.19
  6. Step 6: Final answer
    x = 122,387.64

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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.