Home / 105,106.21-145,049.77-59,790.76

Finding the Fourth Proportional to 105,106.21, 145,049.77 and 59,790.76

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Solution

The fourth proportional to 105,106.21, 145,049.77 and 59,790.76 is: 82,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,106.21 : 145,049.77 = 59,790.76 : x
  2. Step 2: Convert to fraction form
    105,106.21/145,049.77 = 59,790.76/x
  3. Step 3: Cross multiply
    105,106.21x = 145,049.77 × 59,790.76
  4. Step 4: Simplify right side
    105,106.21x = 8,672,635,698.24
  5. Step 5: Solve for x
    x = 8,672,635,698.24/105,106.21
  6. Step 6: Final answer
    x = 82,513.07

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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.