Home / 121,457.90-182,107.65-109,016.30

Finding the Fourth Proportional to 121,457.90, 182,107.65 and 109,016.30

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Solution

The fourth proportional to 121,457.90, 182,107.65 and 109,016.30 is: 163,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,457.90 : 182,107.65 = 109,016.30 : x
  2. Step 2: Convert to fraction form
    121,457.90/182,107.65 = 109,016.30/x
  3. Step 3: Cross multiply
    121,457.90x = 182,107.65 × 109,016.30
  4. Step 4: Simplify right side
    121,457.90x = 19,852,702,204.70
  5. Step 5: Solve for x
    x = 19,852,702,204.70/121,457.90
  6. Step 6: Final answer
    x = 163,453.36

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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.