Home / 105,028.91-144,898.63-64,672.68

Finding the Fourth Proportional to 105,028.91, 144,898.63 and 64,672.68

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Solution

The fourth proportional to 105,028.91, 144,898.63 and 64,672.68 is: 89,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,028.91 : 144,898.63 = 64,672.68 : x
  2. Step 2: Convert to fraction form
    105,028.91/144,898.63 = 64,672.68/x
  3. Step 3: Cross multiply
    105,028.91x = 144,898.63 × 64,672.68
  4. Step 4: Simplify right side
    105,028.91x = 9,370,982,568.75
  5. Step 5: Solve for x
    x = 9,370,982,568.75/105,028.91
  6. Step 6: Final answer
    x = 89,222.89

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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.