Home / 108,055.20-161,985.60-70,633.20

Finding the Fourth Proportional to 108,055.20, 161,985.60 and 70,633.20

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Solution

The fourth proportional to 108,055.20, 161,985.60 and 70,633.20 is: 105,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,055.20 : 161,985.60 = 70,633.20 : x
  2. Step 2: Convert to fraction form
    108,055.20/161,985.60 = 70,633.20/x
  3. Step 3: Cross multiply
    108,055.20x = 161,985.60 × 70,633.20
  4. Step 4: Simplify right side
    108,055.20x = 11,441,561,281.92
  5. Step 5: Solve for x
    x = 11,441,561,281.92/108,055.20
  6. Step 6: Final answer
    x = 105,886.26

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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.