Home / 105,418.24-158,127.36-48,486.40

Finding the Fourth Proportional to 105,418.24, 158,127.36 and 48,486.40

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Solution

The fourth proportional to 105,418.24, 158,127.36 and 48,486.40 is: 72,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,418.24 : 158,127.36 = 48,486.40 : x
  2. Step 2: Convert to fraction form
    105,418.24/158,127.36 = 48,486.40/x
  3. Step 3: Cross multiply
    105,418.24x = 158,127.36 × 48,486.40
  4. Step 4: Simplify right side
    105,418.24x = 7,667,026,427.90
  5. Step 5: Solve for x
    x = 7,667,026,427.90/105,418.24
  6. Step 6: Final answer
    x = 72,729.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.