Home / 103,552.13-155,130.30-86,792.42

Finding the Fourth Proportional to 103,552.13, 155,130.30 and 86,792.42

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Solution

The fourth proportional to 103,552.13, 155,130.30 and 86,792.42 is: 130,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,552.13 : 155,130.30 = 86,792.42 : x
  2. Step 2: Convert to fraction form
    103,552.13/155,130.30 = 86,792.42/x
  3. Step 3: Cross multiply
    103,552.13x = 155,130.30 × 86,792.42
  4. Step 4: Simplify right side
    103,552.13x = 13,464,133,376.67
  5. Step 5: Solve for x
    x = 13,464,133,376.67/103,552.13
  6. Step 6: Final answer
    x = 130,022.76

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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.