Home / 145,713.24-201,094.56-81,186.72

Finding the Fourth Proportional to 145,713.24, 201,094.56 and 81,186.72

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Solution

The fourth proportional to 145,713.24, 201,094.56 and 81,186.72 is: 112,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,713.24 : 201,094.56 = 81,186.72 : x
  2. Step 2: Convert to fraction form
    145,713.24/201,094.56 = 81,186.72/x
  3. Step 3: Cross multiply
    145,713.24x = 201,094.56 × 81,186.72
  4. Step 4: Simplify right side
    145,713.24x = 16,326,207,736.24
  5. Step 5: Solve for x
    x = 16,326,207,736.24/145,713.24
  6. Step 6: Final answer
    x = 112,043.41

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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.