Home / 134,865.63-186,177.56-78,266.07

Finding the Fourth Proportional to 134,865.63, 186,177.56 and 78,266.07

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Solution

The fourth proportional to 134,865.63, 186,177.56 and 78,266.07 is: 108,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,865.63 : 186,177.56 = 78,266.07 : x
  2. Step 2: Convert to fraction form
    134,865.63/186,177.56 = 78,266.07/x
  3. Step 3: Cross multiply
    134,865.63x = 186,177.56 × 78,266.07
  4. Step 4: Simplify right side
    134,865.63x = 14,571,385,552.06
  5. Step 5: Solve for x
    x = 14,571,385,552.06/134,865.63
  6. Step 6: Final answer
    x = 108,043.73

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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.