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Finding the Fourth Proportional to 165,317.78, 228,140.81 and 89,867.90

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Solution

The fourth proportional to 165,317.78, 228,140.81 and 89,867.90 is: 124,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,317.78 : 228,140.81 = 89,867.90 : x
  2. Step 2: Convert to fraction form
    165,317.78/228,140.81 = 89,867.90/x
  3. Step 3: Cross multiply
    165,317.78x = 228,140.81 × 89,867.90
  4. Step 4: Simplify right side
    165,317.78x = 20,502,533,908.96
  5. Step 5: Solve for x
    x = 20,502,533,908.96/165,317.78
  6. Step 6: Final answer
    x = 124,018.93

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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.