Home / 106,984.32-147,663.12-71,175.84

Finding the Fourth Proportional to 106,984.32, 147,663.12 and 71,175.84

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Solution

The fourth proportional to 106,984.32, 147,663.12 and 71,175.84 is: 98,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,984.32 : 147,663.12 = 71,175.84 : x
  2. Step 2: Convert to fraction form
    106,984.32/147,663.12 = 71,175.84/x
  3. Step 3: Cross multiply
    106,984.32x = 147,663.12 × 71,175.84
  4. Step 4: Simplify right side
    106,984.32x = 10,510,046,603.02
  5. Step 5: Solve for x
    x = 10,510,046,603.02/106,984.32
  6. Step 6: Final answer
    x = 98,239.13

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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.