Home / 109,549.01-151,137.12-80,937.58

Finding the Fourth Proportional to 109,549.01, 151,137.12 and 80,937.58

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Solution

The fourth proportional to 109,549.01, 151,137.12 and 80,937.58 is: 111,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,549.01 : 151,137.12 = 80,937.58 : x
  2. Step 2: Convert to fraction form
    109,549.01/151,137.12 = 80,937.58/x
  3. Step 3: Cross multiply
    109,549.01x = 151,137.12 × 80,937.58
  4. Step 4: Simplify right side
    109,549.01x = 12,232,672,267.11
  5. Step 5: Solve for x
    x = 12,232,672,267.11/109,549.01
  6. Step 6: Final answer
    x = 111,663.93

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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.