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Finding the Fourth Proportional to 108,026.20, 162,017.70 and 51,866.20

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Solution

The fourth proportional to 108,026.20, 162,017.70 and 51,866.20 is: 77,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,026.20 : 162,017.70 = 51,866.20 : x
  2. Step 2: Convert to fraction form
    108,026.20/162,017.70 = 51,866.20/x
  3. Step 3: Cross multiply
    108,026.20x = 162,017.70 × 51,866.20
  4. Step 4: Simplify right side
    108,026.20x = 8,403,242,431.74
  5. Step 5: Solve for x
    x = 8,403,242,431.74/108,026.20
  6. Step 6: Final answer
    x = 77,788.93

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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.