Home / 108,768.42-163,034.64-42,188.85

Finding the Fourth Proportional to 108,768.42, 163,034.64 and 42,188.85

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Solution

The fourth proportional to 108,768.42, 163,034.64 and 42,188.85 is: 63,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,768.42 : 163,034.64 = 42,188.85 : x
  2. Step 2: Convert to fraction form
    108,768.42/163,034.64 = 42,188.85/x
  3. Step 3: Cross multiply
    108,768.42x = 163,034.64 × 42,188.85
  4. Step 4: Simplify right side
    108,768.42x = 6,878,243,971.76
  5. Step 5: Solve for x
    x = 6,878,243,971.76/108,768.42
  6. Step 6: Final answer
    x = 63,237.51

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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.