Home / 161,860.22-242,701.02-86,959.11

Finding the Fourth Proportional to 161,860.22, 242,701.02 and 86,959.11

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Solution

The fourth proportional to 161,860.22, 242,701.02 and 86,959.11 is: 130,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,860.22 : 242,701.02 = 86,959.11 : x
  2. Step 2: Convert to fraction form
    161,860.22/242,701.02 = 86,959.11/x
  3. Step 3: Cross multiply
    161,860.22x = 242,701.02 × 86,959.11
  4. Step 4: Simplify right side
    161,860.22x = 21,105,064,695.29
  5. Step 5: Solve for x
    x = 21,105,064,695.29/161,860.22
  6. Step 6: Final answer
    x = 130,390.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.