Home / 109,709.07-164,551.80-74,397.05

Finding the Fourth Proportional to 109,709.07, 164,551.80 and 74,397.05

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Solution

The fourth proportional to 109,709.07, 164,551.80 and 74,397.05 is: 111,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,709.07 : 164,551.80 = 74,397.05 : x
  2. Step 2: Convert to fraction form
    109,709.07/164,551.80 = 74,397.05/x
  3. Step 3: Cross multiply
    109,709.07x = 164,551.80 × 74,397.05
  4. Step 4: Simplify right side
    109,709.07x = 12,242,167,669.43
  5. Step 5: Solve for x
    x = 12,242,167,669.43/109,709.07
  6. Step 6: Final answer
    x = 111,587.57

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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.