Home / 109,909.80-164,670.30-93,191.40

Finding the Fourth Proportional to 109,909.80, 164,670.30 and 93,191.40

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Solution

The fourth proportional to 109,909.80, 164,670.30 and 93,191.40 is: 139,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,909.80 : 164,670.30 = 93,191.40 : x
  2. Step 2: Convert to fraction form
    109,909.80/164,670.30 = 93,191.40/x
  3. Step 3: Cross multiply
    109,909.80x = 164,670.30 × 93,191.40
  4. Step 4: Simplify right side
    109,909.80x = 15,345,855,795.42
  5. Step 5: Solve for x
    x = 15,345,855,795.42/109,909.80
  6. Step 6: Final answer
    x = 139,622.27

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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.