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Finding the Fourth Proportional to 118,758.77, 163,888.25 and 71,012.11

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Solution

The fourth proportional to 118,758.77, 163,888.25 and 71,012.11 is: 97,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.77 : 163,888.25 = 71,012.11 : x
  2. Step 2: Convert to fraction form
    118,758.77/163,888.25 = 71,012.11/x
  3. Step 3: Cross multiply
    118,758.77x = 163,888.25 × 71,012.11
  4. Step 4: Simplify right side
    118,758.77x = 11,638,050,846.43
  5. Step 5: Solve for x
    x = 11,638,050,846.43/118,758.77
  6. Step 6: Final answer
    x = 97,997.41

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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.