Home / 103,074.64-142,242.06-57,754.60

Finding the Fourth Proportional to 103,074.64, 142,242.06 and 57,754.60

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Solution

The fourth proportional to 103,074.64, 142,242.06 and 57,754.60 is: 79,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,074.64 : 142,242.06 = 57,754.60 : x
  2. Step 2: Convert to fraction form
    103,074.64/142,242.06 = 57,754.60/x
  3. Step 3: Cross multiply
    103,074.64x = 142,242.06 × 57,754.60
  4. Step 4: Simplify right side
    103,074.64x = 8,215,133,278.48
  5. Step 5: Solve for x
    x = 8,215,133,278.48/103,074.64
  6. Step 6: Final answer
    x = 79,700.82

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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.