Home / 121,353.36-182,112.04-42,468.28

Finding the Fourth Proportional to 121,353.36, 182,112.04 and 42,468.28

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Solution

The fourth proportional to 121,353.36, 182,112.04 and 42,468.28 is: 63,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,353.36 : 182,112.04 = 42,468.28 : x
  2. Step 2: Convert to fraction form
    121,353.36/182,112.04 = 42,468.28/x
  3. Step 3: Cross multiply
    121,353.36x = 182,112.04 × 42,468.28
  4. Step 4: Simplify right side
    121,353.36x = 7,733,985,106.09
  5. Step 5: Solve for x
    x = 7,733,985,106.09/121,353.36
  6. Step 6: Final answer
    x = 63,731.12

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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.