Home / 165,733.28-228,710.73-90,281.78

Finding the Fourth Proportional to 165,733.28, 228,710.73 and 90,281.78

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Solution

The fourth proportional to 165,733.28, 228,710.73 and 90,281.78 is: 124,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,733.28 : 228,710.73 = 90,281.78 : x
  2. Step 2: Convert to fraction form
    165,733.28/228,710.73 = 90,281.78/x
  3. Step 3: Cross multiply
    165,733.28x = 228,710.73 × 90,281.78
  4. Step 4: Simplify right side
    165,733.28x = 20,648,411,809.50
  5. Step 5: Solve for x
    x = 20,648,411,809.50/165,733.28
  6. Step 6: Final answer
    x = 124,588.20

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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.