Home / 121,015.20-166,980.65-67,293.17

Finding the Fourth Proportional to 121,015.20, 166,980.65 and 67,293.17

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Solution

The fourth proportional to 121,015.20, 166,980.65 and 67,293.17 is: 92,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,015.20 : 166,980.65 = 67,293.17 : x
  2. Step 2: Convert to fraction form
    121,015.20/166,980.65 = 67,293.17/x
  3. Step 3: Cross multiply
    121,015.20x = 166,980.65 × 67,293.17
  4. Step 4: Simplify right side
    121,015.20x = 11,236,657,267.16
  5. Step 5: Solve for x
    x = 11,236,657,267.16/121,015.20
  6. Step 6: Final answer
    x = 92,853.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.