Home / 105,314.40-145,334.88-59,991.76

Finding the Fourth Proportional to 105,314.40, 145,334.88 and 59,991.76

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Solution

The fourth proportional to 105,314.40, 145,334.88 and 59,991.76 is: 82,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,314.40 : 145,334.88 = 59,991.76 : x
  2. Step 2: Convert to fraction form
    105,314.40/145,334.88 = 59,991.76/x
  3. Step 3: Cross multiply
    105,314.40x = 145,334.88 × 59,991.76
  4. Step 4: Simplify right side
    105,314.40x = 8,718,895,240.59
  5. Step 5: Solve for x
    x = 8,718,895,240.59/105,314.40
  6. Step 6: Final answer
    x = 82,789.20

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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.