Home / 105,565.32-158,356.26-30,686.58

Finding the Fourth Proportional to 105,565.32, 158,356.26 and 30,686.58

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Solution

The fourth proportional to 105,565.32, 158,356.26 and 30,686.58 is: 46,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,565.32 : 158,356.26 = 30,686.58 : x
  2. Step 2: Convert to fraction form
    105,565.32/158,356.26 = 30,686.58/x
  3. Step 3: Cross multiply
    105,565.32x = 158,356.26 × 30,686.58
  4. Step 4: Simplify right side
    105,565.32x = 4,859,412,040.99
  5. Step 5: Solve for x
    x = 4,859,412,040.99/105,565.32
  6. Step 6: Final answer
    x = 46,032.28

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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.