Home / 109,695.80-164,561.09-42,225.48

Finding the Fourth Proportional to 109,695.80, 164,561.09 and 42,225.48

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Solution

The fourth proportional to 109,695.80, 164,561.09 and 42,225.48 is: 63,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,695.80 : 164,561.09 = 42,225.48 : x
  2. Step 2: Convert to fraction form
    109,695.80/164,561.09 = 42,225.48/x
  3. Step 3: Cross multiply
    109,695.80x = 164,561.09 × 42,225.48
  4. Step 4: Simplify right side
    109,695.80x = 6,948,671,014.57
  5. Step 5: Solve for x
    x = 6,948,671,014.57/109,695.80
  6. Step 6: Final answer
    x = 63,344.91

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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.