Home / 109,700.10-151,398.45-91,763.46

Finding the Fourth Proportional to 109,700.10, 151,398.45 and 91,763.46

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Solution

The fourth proportional to 109,700.10, 151,398.45 and 91,763.46 is: 126,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,700.10 : 151,398.45 = 91,763.46 : x
  2. Step 2: Convert to fraction form
    109,700.10/151,398.45 = 91,763.46/x
  3. Step 3: Cross multiply
    109,700.10x = 151,398.45 × 91,763.46
  4. Step 4: Simplify right side
    109,700.10x = 13,892,845,610.64
  5. Step 5: Solve for x
    x = 13,892,845,610.64/109,700.10
  6. Step 6: Final answer
    x = 126,643.87

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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.