Home / 108,116.08-161,948.12-86,941.60

Finding the Fourth Proportional to 108,116.08, 161,948.12 and 86,941.60

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Solution

The fourth proportional to 108,116.08, 161,948.12 and 86,941.60 is: 130,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,116.08 : 161,948.12 = 86,941.60 : x
  2. Step 2: Convert to fraction form
    108,116.08/161,948.12 = 86,941.60/x
  3. Step 3: Cross multiply
    108,116.08x = 161,948.12 × 86,941.60
  4. Step 4: Simplify right side
    108,116.08x = 14,080,028,669.79
  5. Step 5: Solve for x
    x = 14,080,028,669.79/108,116.08
  6. Step 6: Final answer
    x = 130,230.66

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1.5x scale

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.