Home / 165,258.80-228,052.20-89,807.36

Finding the Fourth Proportional to 165,258.80, 228,052.20 and 89,807.36

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Solution

The fourth proportional to 165,258.80, 228,052.20 and 89,807.36 is: 123,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,258.80 : 228,052.20 = 89,807.36 : x
  2. Step 2: Convert to fraction form
    165,258.80/228,052.20 = 89,807.36/x
  3. Step 3: Cross multiply
    165,258.80x = 228,052.20 × 89,807.36
  4. Step 4: Simplify right side
    165,258.80x = 20,480,766,024.19
  5. Step 5: Solve for x
    x = 20,480,766,024.19/165,258.80
  6. Step 6: Final answer
    x = 123,931.47

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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.