Home / 121,870.02-167,806.74-106,677.66

Finding the Fourth Proportional to 121,870.02, 167,806.74 and 106,677.66

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Solution

The fourth proportional to 121,870.02, 167,806.74 and 106,677.66 is: 146,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,870.02 : 167,806.74 = 106,677.66 : x
  2. Step 2: Convert to fraction form
    121,870.02/167,806.74 = 106,677.66/x
  3. Step 3: Cross multiply
    121,870.02x = 167,806.74 × 106,677.66
  4. Step 4: Simplify right side
    121,870.02x = 17,901,230,355.43
  5. Step 5: Solve for x
    x = 17,901,230,355.43/121,870.02
  6. Step 6: Final answer
    x = 146,887.89

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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.