Home / 105,417.99-145,524.33-67,228.79

Finding the Fourth Proportional to 105,417.99, 145,524.33 and 67,228.79

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Solution

The fourth proportional to 105,417.99, 145,524.33 and 67,228.79 is: 92,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,417.99 : 145,524.33 = 67,228.79 : x
  2. Step 2: Convert to fraction form
    105,417.99/145,524.33 = 67,228.79/x
  3. Step 3: Cross multiply
    105,417.99x = 145,524.33 × 67,228.79
  4. Step 4: Simplify right side
    105,417.99x = 9,783,423,893.84
  5. Step 5: Solve for x
    x = 9,783,423,893.84/105,417.99
  6. Step 6: Final answer
    x = 92,806.02

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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.