Home / 104,520.43-144,182.91-66,212.40

Finding the Fourth Proportional to 104,520.43, 144,182.91 and 66,212.40

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Solution

The fourth proportional to 104,520.43, 144,182.91 and 66,212.40 is: 91,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.43 : 144,182.91 = 66,212.40 : x
  2. Step 2: Convert to fraction form
    104,520.43/144,182.91 = 66,212.40/x
  3. Step 3: Cross multiply
    104,520.43x = 144,182.91 × 66,212.40
  4. Step 4: Simplify right side
    104,520.43x = 9,546,696,510.08
  5. Step 5: Solve for x
    x = 9,546,696,510.08/104,520.43
  6. Step 6: Final answer
    x = 91,338.09

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1.5x scale

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.