Home / 142,920.51-196,735.30-123,530.60

Finding the Fourth Proportional to 142,920.51, 196,735.30 and 123,530.60

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Solution

The fourth proportional to 142,920.51, 196,735.30 and 123,530.60 is: 170,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,920.51 : 196,735.30 = 123,530.60 : x
  2. Step 2: Convert to fraction form
    142,920.51/196,735.30 = 123,530.60/x
  3. Step 3: Cross multiply
    142,920.51x = 196,735.30 × 123,530.60
  4. Step 4: Simplify right side
    142,920.51x = 24,302,829,650.18
  5. Step 5: Solve for x
    x = 24,302,829,650.18/142,920.51
  6. Step 6: Final answer
    x = 170,044.38

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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.