Home / 118,864.12-164,031.02-64,415.12

Finding the Fourth Proportional to 118,864.12, 164,031.02 and 64,415.12

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Solution

The fourth proportional to 118,864.12, 164,031.02 and 64,415.12 is: 88,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,864.12 : 164,031.02 = 64,415.12 : x
  2. Step 2: Convert to fraction form
    118,864.12/164,031.02 = 64,415.12/x
  3. Step 3: Cross multiply
    118,864.12x = 164,031.02 × 64,415.12
  4. Step 4: Simplify right side
    118,864.12x = 10,566,077,837.02
  5. Step 5: Solve for x
    x = 10,566,077,837.02/118,864.12
  6. Step 6: Final answer
    x = 88,892.07

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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.