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Finding the Fourth Proportional to 108,081.60, 162,000.90 and 51,948.60

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Solution

The fourth proportional to 108,081.60, 162,000.90 and 51,948.60 is: 77,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,081.60 : 162,000.90 = 51,948.60 : x
  2. Step 2: Convert to fraction form
    108,081.60/162,000.90 = 51,948.60/x
  3. Step 3: Cross multiply
    108,081.60x = 162,000.90 × 51,948.60
  4. Step 4: Simplify right side
    108,081.60x = 8,415,719,953.74
  5. Step 5: Solve for x
    x = 8,415,719,953.74/108,081.60
  6. Step 6: Final answer
    x = 77,864.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.