Home / 109,940.68-151,720.86-67,475.08

Finding the Fourth Proportional to 109,940.68, 151,720.86 and 67,475.08

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Solution

The fourth proportional to 109,940.68, 151,720.86 and 67,475.08 is: 93,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,940.68 : 151,720.86 = 67,475.08 : x
  2. Step 2: Convert to fraction form
    109,940.68/151,720.86 = 67,475.08/x
  3. Step 3: Cross multiply
    109,940.68x = 151,720.86 × 67,475.08
  4. Step 4: Simplify right side
    109,940.68x = 10,237,377,166.17
  5. Step 5: Solve for x
    x = 10,237,377,166.17/109,940.68
  6. Step 6: Final answer
    x = 93,117.28

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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.