Home / 121,116.63-167,142.06-67,403.91

Finding the Fourth Proportional to 121,116.63, 167,142.06 and 67,403.91

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Solution

The fourth proportional to 121,116.63, 167,142.06 and 67,403.91 is: 93,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116.63 : 167,142.06 = 67,403.91 : x
  2. Step 2: Convert to fraction form
    121,116.63/167,142.06 = 67,403.91/x
  3. Step 3: Cross multiply
    121,116.63x = 167,142.06 × 67,403.91
  4. Step 4: Simplify right side
    121,116.63x = 11,266,028,369.45
  5. Step 5: Solve for x
    x = 11,266,028,369.45/121,116.63
  6. Step 6: Final answer
    x = 93,018.01

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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.