Home / 109,653.40-164,307.87-84,754.42

Finding the Fourth Proportional to 109,653.40, 164,307.87 and 84,754.42

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Solution

The fourth proportional to 109,653.40, 164,307.87 and 84,754.42 is: 126,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,653.40 : 164,307.87 = 84,754.42 : x
  2. Step 2: Convert to fraction form
    109,653.40/164,307.87 = 84,754.42/x
  3. Step 3: Cross multiply
    109,653.40x = 164,307.87 × 84,754.42
  4. Step 4: Simplify right side
    109,653.40x = 13,925,818,223.29
  5. Step 5: Solve for x
    x = 13,925,818,223.29/109,653.40
  6. Step 6: Final answer
    x = 126,998.51

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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.