Home / 121,931.51-182,881.13-55,356.33

Finding the Fourth Proportional to 121,931.51, 182,881.13 and 55,356.33

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Solution

The fourth proportional to 121,931.51, 182,881.13 and 55,356.33 is: 83,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,931.51 : 182,881.13 = 55,356.33 : x
  2. Step 2: Convert to fraction form
    121,931.51/182,881.13 = 55,356.33/x
  3. Step 3: Cross multiply
    121,931.51x = 182,881.13 × 55,356.33
  4. Step 4: Simplify right side
    121,931.51x = 10,123,628,007.52
  5. Step 5: Solve for x
    x = 10,123,628,007.52/121,931.51
  6. Step 6: Final answer
    x = 83,027.17

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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.