Home / 371,696.12-557,565.36-105,435.80

Finding the Fourth Proportional to 371,696.12, 557,565.36 and 105,435.80

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Solution

The fourth proportional to 371,696.12, 557,565.36 and 105,435.80 is: 158,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,696.12 : 557,565.36 = 105,435.80 : x
  2. Step 2: Convert to fraction form
    371,696.12/557,565.36 = 105,435.80/x
  3. Step 3: Cross multiply
    371,696.12x = 557,565.36 × 105,435.80
  4. Step 4: Simplify right side
    371,696.12x = 58,787,349,783.89
  5. Step 5: Solve for x
    x = 58,787,349,783.89/371,696.12
  6. Step 6: Final answer
    x = 158,159.71

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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.