Home / 103,102.56-142,291.52-57,788.24

Finding the Fourth Proportional to 103,102.56, 142,291.52 and 57,788.24

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Solution

The fourth proportional to 103,102.56, 142,291.52 and 57,788.24 is: 79,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,102.56 : 142,291.52 = 57,788.24 : x
  2. Step 2: Convert to fraction form
    103,102.56/142,291.52 = 57,788.24/x
  3. Step 3: Cross multiply
    103,102.56x = 142,291.52 × 57,788.24
  4. Step 4: Simplify right side
    103,102.56x = 8,222,776,507.72
  5. Step 5: Solve for x
    x = 8,222,776,507.72/103,102.56
  6. Step 6: Final answer
    x = 79,753.37

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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.