Home / 135,032.94-186,307.56-77,669.28

Finding the Fourth Proportional to 135,032.94, 186,307.56 and 77,669.28

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Solution

The fourth proportional to 135,032.94, 186,307.56 and 77,669.28 is: 107,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,032.94 : 186,307.56 = 77,669.28 : x
  2. Step 2: Convert to fraction form
    135,032.94/186,307.56 = 77,669.28/x
  3. Step 3: Cross multiply
    135,032.94x = 186,307.56 × 77,669.28
  4. Step 4: Simplify right side
    135,032.94x = 14,470,374,043.76
  5. Step 5: Solve for x
    x = 14,470,374,043.76/135,032.94
  6. Step 6: Final answer
    x = 107,161.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.