Home / 124,703.05-172,091.24-70,991.55

Finding the Fourth Proportional to 124,703.05, 172,091.24 and 70,991.55

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Solution

The fourth proportional to 124,703.05, 172,091.24 and 70,991.55 is: 97,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,703.05 : 172,091.24 = 70,991.55 : x
  2. Step 2: Convert to fraction form
    124,703.05/172,091.24 = 70,991.55/x
  3. Step 3: Cross multiply
    124,703.05x = 172,091.24 × 70,991.55
  4. Step 4: Simplify right side
    124,703.05x = 12,217,023,869.02
  5. Step 5: Solve for x
    x = 12,217,023,869.02/124,703.05
  6. Step 6: Final answer
    x = 97,968.93

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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.