Home / 318,123.13-477,172.23-107,761.07

Finding the Fourth Proportional to 318,123.13, 477,172.23 and 107,761.07

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Solution

The fourth proportional to 318,123.13, 477,172.23 and 107,761.07 is: 161,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,123.13 : 477,172.23 = 107,761.07 : x
  2. Step 2: Convert to fraction form
    318,123.13/477,172.23 = 107,761.07/x
  3. Step 3: Cross multiply
    318,123.13x = 477,172.23 × 107,761.07
  4. Step 4: Simplify right side
    318,123.13x = 51,420,590,079.09
  5. Step 5: Solve for x
    x = 51,420,590,079.09/318,123.13
  6. Step 6: Final answer
    x = 161,637.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.