Home / 102,965.54-142,095.16-57,643.32

Finding the Fourth Proportional to 102,965.54, 142,095.16 and 57,643.32

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Solution

The fourth proportional to 102,965.54, 142,095.16 and 57,643.32 is: 79,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,965.54 : 142,095.16 = 57,643.32 : x
  2. Step 2: Convert to fraction form
    102,965.54/142,095.16 = 57,643.32/x
  3. Step 3: Cross multiply
    102,965.54x = 142,095.16 × 57,643.32
  4. Step 4: Simplify right side
    102,965.54x = 8,190,836,778.33
  5. Step 5: Solve for x
    x = 8,190,836,778.33/102,965.54
  6. Step 6: Final answer
    x = 79,549.30

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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.