Home / 108,221.51-161,539.76-95,438.60

Finding the Fourth Proportional to 108,221.51, 161,539.76 and 95,438.60

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Solution

The fourth proportional to 108,221.51, 161,539.76 and 95,438.60 is: 142,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,221.51 : 161,539.76 = 95,438.60 : x
  2. Step 2: Convert to fraction form
    108,221.51/161,539.76 = 95,438.60/x
  3. Step 3: Cross multiply
    108,221.51x = 161,539.76 × 95,438.60
  4. Step 4: Simplify right side
    108,221.51x = 15,417,128,575.41
  5. Step 5: Solve for x
    x = 15,417,128,575.41/108,221.51
  6. Step 6: Final answer
    x = 142,459.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.