Home / 121,146.06-167,161.62-67,429.70

Finding the Fourth Proportional to 121,146.06, 167,161.62 and 67,429.70

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Solution

The fourth proportional to 121,146.06, 167,161.62 and 67,429.70 is: 93,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146.06 : 167,161.62 = 67,429.70 : x
  2. Step 2: Convert to fraction form
    121,146.06/167,161.62 = 67,429.70/x
  3. Step 3: Cross multiply
    121,146.06x = 167,161.62 × 67,429.70
  4. Step 4: Simplify right side
    121,146.06x = 11,271,657,888.11
  5. Step 5: Solve for x
    x = 11,271,657,888.11/121,146.06
  6. Step 6: Final answer
    x = 93,041.89

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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.