Home / 121,272.63-181,887.29-42,409.47

Finding the Fourth Proportional to 121,272.63, 181,887.29 and 42,409.47

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Solution

The fourth proportional to 121,272.63, 181,887.29 and 42,409.47 is: 63,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,272.63 : 181,887.29 = 42,409.47 : x
  2. Step 2: Convert to fraction form
    121,272.63/181,887.29 = 42,409.47/x
  3. Step 3: Cross multiply
    121,272.63x = 181,887.29 × 42,409.47
  4. Step 4: Simplify right side
    121,272.63x = 7,713,743,356.59
  5. Step 5: Solve for x
    x = 7,713,743,356.59/121,272.63
  6. Step 6: Final answer
    x = 63,606.63

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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.