Home / 103,678.12-155,329.44-47,565.16

Finding the Fourth Proportional to 103,678.12, 155,329.44 and 47,565.16

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Solution

The fourth proportional to 103,678.12, 155,329.44 and 47,565.16 is: 71,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.12 : 155,329.44 = 47,565.16 : x
  2. Step 2: Convert to fraction form
    103,678.12/155,329.44 = 47,565.16/x
  3. Step 3: Cross multiply
    103,678.12x = 155,329.44 × 47,565.16
  4. Step 4: Simplify right side
    103,678.12x = 7,388,269,666.31
  5. Step 5: Solve for x
    x = 7,388,269,666.31/103,678.12
  6. Step 6: Final answer
    x = 71,261.61

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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.