Home / 371,686.90-557,551.50-105,426.37

Finding the Fourth Proportional to 371,686.90, 557,551.50 and 105,426.37

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Solution

The fourth proportional to 371,686.90, 557,551.50 and 105,426.37 is: 158,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,686.90 : 557,551.50 = 105,426.37 : x
  2. Step 2: Convert to fraction form
    371,686.90/557,551.50 = 105,426.37/x
  3. Step 3: Cross multiply
    371,686.90x = 557,551.50 × 105,426.37
  4. Step 4: Simplify right side
    371,686.90x = 58,780,630,733.06
  5. Step 5: Solve for x
    x = 58,780,630,733.06/371,686.90
  6. Step 6: Final answer
    x = 158,145.55

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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.