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Finding the Fourth Proportional to 105,701.99, 145,867.63 and 57,955.22

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Solution

The fourth proportional to 105,701.99, 145,867.63 and 57,955.22 is: 79,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,701.99 : 145,867.63 = 57,955.22 : x
  2. Step 2: Convert to fraction form
    105,701.99/145,867.63 = 57,955.22/x
  3. Step 3: Cross multiply
    105,701.99x = 145,867.63 × 57,955.22
  4. Step 4: Simplify right side
    105,701.99x = 8,453,790,587.53
  5. Step 5: Solve for x
    x = 8,453,790,587.53/105,701.99
  6. Step 6: Final answer
    x = 79,977.59

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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.