Home / 121,328.12-167,393.30-67,602.98

Finding the Fourth Proportional to 121,328.12, 167,393.30 and 67,602.98

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Solution

The fourth proportional to 121,328.12, 167,393.30 and 67,602.98 is: 93,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,328.12 : 167,393.30 = 67,602.98 : x
  2. Step 2: Convert to fraction form
    121,328.12/167,393.30 = 67,602.98/x
  3. Step 3: Cross multiply
    121,328.12x = 167,393.30 × 67,602.98
  4. Step 4: Simplify right side
    121,328.12x = 11,316,285,912.03
  5. Step 5: Solve for x
    x = 11,316,285,912.03/121,328.12
  6. Step 6: Final answer
    x = 93,270.10

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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.