Home / 165,875.67-228,907.89-90,424.17

Finding the Fourth Proportional to 165,875.67, 228,907.89 and 90,424.17

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Solution

The fourth proportional to 165,875.67, 228,907.89 and 90,424.17 is: 124,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,875.67 : 228,907.89 = 90,424.17 : x
  2. Step 2: Convert to fraction form
    165,875.67/228,907.89 = 90,424.17/x
  3. Step 3: Cross multiply
    165,875.67x = 228,907.89 × 90,424.17
  4. Step 4: Simplify right side
    165,875.67x = 20,698,805,959.70
  5. Step 5: Solve for x
    x = 20,698,805,959.70/165,875.67
  6. Step 6: Final answer
    x = 124,785.06

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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.