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Finding the Fourth Proportional to 108,077.62, 149,120.85 and 63,356.98

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Solution

The fourth proportional to 108,077.62, 149,120.85 and 63,356.98 is: 87,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,077.62 : 149,120.85 = 63,356.98 : x
  2. Step 2: Convert to fraction form
    108,077.62/149,120.85 = 63,356.98/x
  3. Step 3: Cross multiply
    108,077.62x = 149,120.85 × 63,356.98
  4. Step 4: Simplify right side
    108,077.62x = 9,447,846,711.03
  5. Step 5: Solve for x
    x = 9,447,846,711.03/108,077.62
  6. Step 6: Final answer
    x = 87,417.24

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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.