Home / 105,916.83-158,897.13-31,039.43

Finding the Fourth Proportional to 105,916.83, 158,897.13 and 31,039.43

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Solution

The fourth proportional to 105,916.83, 158,897.13 and 31,039.43 is: 46,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,916.83 : 158,897.13 = 31,039.43 : x
  2. Step 2: Convert to fraction form
    105,916.83/158,897.13 = 31,039.43/x
  3. Step 3: Cross multiply
    105,916.83x = 158,897.13 × 31,039.43
  4. Step 4: Simplify right side
    105,916.83x = 4,932,075,549.35
  5. Step 5: Solve for x
    x = 4,932,075,549.35/105,916.83
  6. Step 6: Final answer
    x = 46,565.55

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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.