Home / 165,712.50-228,683.25-90,261

Finding the Fourth Proportional to 165,712.50, 228,683.25 and 90,261

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Solution

The fourth proportional to 165,712.50, 228,683.25 and 90,261 is: 124,560.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,712.50 : 228,683.25 = 90,261 : x
  2. Step 2: Convert to fraction form
    165,712.50/228,683.25 = 90,261/x
  3. Step 3: Cross multiply
    165,712.50x = 228,683.25 × 90,261
  4. Step 4: Simplify right side
    165,712.50x = 20,641,178,828.25
  5. Step 5: Solve for x
    x = 20,641,178,828.25/165,712.50
  6. Step 6: Final answer
    x = 124,560.18

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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.