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Finding the Fourth Proportional to 118,751.43, 163,870.90 and 65,026.07

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Solution

The fourth proportional to 118,751.43, 163,870.90 and 65,026.07 is: 89,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,751.43 : 163,870.90 = 65,026.07 : x
  2. Step 2: Convert to fraction form
    118,751.43/163,870.90 = 65,026.07/x
  3. Step 3: Cross multiply
    118,751.43x = 163,870.90 × 65,026.07
  4. Step 4: Simplify right side
    118,751.43x = 10,655,880,246.96
  5. Step 5: Solve for x
    x = 10,655,880,246.96/118,751.43
  6. Step 6: Final answer
    x = 89,732.64

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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.