Home / 121,353.37-182,112.03-42,468.28

Finding the Fourth Proportional to 121,353.37, 182,112.03 and 42,468.28

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Solution

The fourth proportional to 121,353.37, 182,112.03 and 42,468.28 is: 63,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,353.37 : 182,112.03 = 42,468.28 : x
  2. Step 2: Convert to fraction form
    121,353.37/182,112.03 = 42,468.28/x
  3. Step 3: Cross multiply
    121,353.37x = 182,112.03 × 42,468.28
  4. Step 4: Simplify right side
    121,353.37x = 7,733,984,681.41
  5. Step 5: Solve for x
    x = 7,733,984,681.41/121,353.37
  6. Step 6: Final answer
    x = 63,731.11

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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.