Home / 107,820.12-161,664.30-51,677.40

Finding the Fourth Proportional to 107,820.12, 161,664.30 and 51,677.40

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Solution

The fourth proportional to 107,820.12, 161,664.30 and 51,677.40 is: 77,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,820.12 : 161,664.30 = 51,677.40 : x
  2. Step 2: Convert to fraction form
    107,820.12/161,664.30 = 51,677.40/x
  3. Step 3: Cross multiply
    107,820.12x = 161,664.30 × 51,677.40
  4. Step 4: Simplify right side
    107,820.12x = 8,354,390,696.82
  5. Step 5: Solve for x
    x = 8,354,390,696.82/107,820.12
  6. Step 6: Final answer
    x = 77,484.52

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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.