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Finding the Fourth Proportional to 103,661.37, 143,053.29 and 58,340.25

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Solution

The fourth proportional to 103,661.37, 143,053.29 and 58,340.25 is: 80,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.37 : 143,053.29 = 58,340.25 : x
  2. Step 2: Convert to fraction form
    103,661.37/143,053.29 = 58,340.25/x
  3. Step 3: Cross multiply
    103,661.37x = 143,053.29 × 58,340.25
  4. Step 4: Simplify right side
    103,661.37x = 8,345,764,701.92
  5. Step 5: Solve for x
    x = 8,345,764,701.92/103,661.37
  6. Step 6: Final answer
    x = 80,509.88

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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.