Home / 130,423.44-180,067.98-89,655.36

Finding the Fourth Proportional to 130,423.44, 180,067.98 and 89,655.36

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Solution

The fourth proportional to 130,423.44, 180,067.98 and 89,655.36 is: 123,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,423.44 : 180,067.98 = 89,655.36 : x
  2. Step 2: Convert to fraction form
    130,423.44/180,067.98 = 89,655.36/x
  3. Step 3: Cross multiply
    130,423.44x = 180,067.98 × 89,655.36
  4. Step 4: Simplify right side
    130,423.44x = 16,144,059,571.37
  5. Step 5: Solve for x
    x = 16,144,059,571.37/130,423.44
  6. Step 6: Final answer
    x = 123,781.89

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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.