Home / 121,603.55-182,031.44-103,667.36

Finding the Fourth Proportional to 121,603.55, 182,031.44 and 103,667.36

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Solution

The fourth proportional to 121,603.55, 182,031.44 and 103,667.36 is: 155,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,603.55 : 182,031.44 = 103,667.36 : x
  2. Step 2: Convert to fraction form
    121,603.55/182,031.44 = 103,667.36/x
  3. Step 3: Cross multiply
    121,603.55x = 182,031.44 × 103,667.36
  4. Step 4: Simplify right side
    121,603.55x = 18,870,717,393.30
  5. Step 5: Solve for x
    x = 18,870,717,393.30/121,603.55
  6. Step 6: Final answer
    x = 155,182.30

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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.