Home / 107,128.55-160,579.53-39,617.21

Finding the Fourth Proportional to 107,128.55, 160,579.53 and 39,617.21

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Solution

The fourth proportional to 107,128.55, 160,579.53 and 39,617.21 is: 59,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.55 : 160,579.53 = 39,617.21 : x
  2. Step 2: Convert to fraction form
    107,128.55/160,579.53 = 39,617.21/x
  3. Step 3: Cross multiply
    107,128.55x = 160,579.53 × 39,617.21
  4. Step 4: Simplify right side
    107,128.55x = 6,361,712,158.81
  5. Step 5: Solve for x
    x = 6,361,712,158.81/107,128.55
  6. Step 6: Final answer
    x = 59,383.91

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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.