Home / 657,687.15-986,153.91-202,159.76

Finding the Fourth Proportional to 657,687.15, 986,153.91 and 202,159.76

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Solution

The fourth proportional to 657,687.15, 986,153.91 and 202,159.76 is: 303,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,687.15 : 986,153.91 = 202,159.76 : x
  2. Step 2: Convert to fraction form
    657,687.15/986,153.91 = 202,159.76/x
  3. Step 3: Cross multiply
    657,687.15x = 986,153.91 × 202,159.76
  4. Step 4: Simplify right side
    657,687.15x = 199,360,632,837.89
  5. Step 5: Solve for x
    x = 199,360,632,837.89/657,687.15
  6. Step 6: Final answer
    x = 303,123.81

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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.