Home / 159,317.04-219,831.79-91,321.50

Finding the Fourth Proportional to 159,317.04, 219,831.79 and 91,321.50

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Solution

The fourth proportional to 159,317.04, 219,831.79 and 91,321.50 is: 126,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,317.04 : 219,831.79 = 91,321.50 : x
  2. Step 2: Convert to fraction form
    159,317.04/219,831.79 = 91,321.50/x
  3. Step 3: Cross multiply
    159,317.04x = 219,831.79 × 91,321.50
  4. Step 4: Simplify right side
    159,317.04x = 20,075,368,810.49
  5. Step 5: Solve for x
    x = 20,075,368,810.49/159,317.04
  6. Step 6: Final answer
    x = 126,008.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.