Home / 371,699.12-557,569.86-105,438.80

Finding the Fourth Proportional to 371,699.12, 557,569.86 and 105,438.80

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Solution

The fourth proportional to 371,699.12, 557,569.86 and 105,438.80 is: 158,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,699.12 : 557,569.86 = 105,438.80 : x
  2. Step 2: Convert to fraction form
    371,699.12/557,569.86 = 105,438.80/x
  3. Step 3: Cross multiply
    371,699.12x = 557,569.86 × 105,438.80
  4. Step 4: Simplify right side
    371,699.12x = 58,789,496,954.57
  5. Step 5: Solve for x
    x = 58,789,496,954.57/371,699.12
  6. Step 6: Final answer
    x = 158,164.21

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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.