Home / 103,018.08-142,163.40-57,695.88

Finding the Fourth Proportional to 103,018.08, 142,163.40 and 57,695.88

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Solution

The fourth proportional to 103,018.08, 142,163.40 and 57,695.88 is: 79,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,018.08 : 142,163.40 = 57,695.88 : x
  2. Step 2: Convert to fraction form
    103,018.08/142,163.40 = 57,695.88/x
  3. Step 3: Cross multiply
    103,018.08x = 142,163.40 × 57,695.88
  4. Step 4: Simplify right side
    103,018.08x = 8,202,242,466.79
  5. Step 5: Solve for x
    x = 8,202,242,466.79/103,018.08
  6. Step 6: Final answer
    x = 79,619.45

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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.