Home / 145,165.14-199,913.13-130,701.78

Finding the Fourth Proportional to 145,165.14, 199,913.13 and 130,701.78

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Solution

The fourth proportional to 145,165.14, 199,913.13 and 130,701.78 is: 179,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165.14 : 199,913.13 = 130,701.78 : x
  2. Step 2: Convert to fraction form
    145,165.14/199,913.13 = 130,701.78/x
  3. Step 3: Cross multiply
    145,165.14x = 199,913.13 × 130,701.78
  4. Step 4: Simplify right side
    145,165.14x = 26,129,001,936.37
  5. Step 5: Solve for x
    x = 26,129,001,936.37/145,165.14
  6. Step 6: Final answer
    x = 179,995.02

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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.