Home / 122,087.84-168,476.29-71,102.12

Finding the Fourth Proportional to 122,087.84, 168,476.29 and 71,102.12

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Solution

The fourth proportional to 122,087.84, 168,476.29 and 71,102.12 is: 98,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,087.84 : 168,476.29 = 71,102.12 : x
  2. Step 2: Convert to fraction form
    122,087.84/168,476.29 = 71,102.12/x
  3. Step 3: Cross multiply
    122,087.84x = 168,476.29 × 71,102.12
  4. Step 4: Simplify right side
    122,087.84x = 11,979,020,368.60
  5. Step 5: Solve for x
    x = 11,979,020,368.60/122,087.84
  6. Step 6: Final answer
    x = 98,118.05

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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.