Home / 121,530.33-182,313.71-42,630.66

Finding the Fourth Proportional to 121,530.33, 182,313.71 and 42,630.66

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Solution

The fourth proportional to 121,530.33, 182,313.71 and 42,630.66 is: 63,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,530.33 : 182,313.71 = 42,630.66 : x
  2. Step 2: Convert to fraction form
    121,530.33/182,313.71 = 42,630.66/x
  3. Step 3: Cross multiply
    121,530.33x = 182,313.71 × 42,630.66
  4. Step 4: Simplify right side
    121,530.33x = 7,772,153,571.20
  5. Step 5: Solve for x
    x = 7,772,153,571.20/121,530.33
  6. Step 6: Final answer
    x = 63,952.38

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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.