Home / 79,831.08-119,597.04-71,615.16

Finding the Fourth Proportional to 79,831.08, 119,597.04 and 71,615.16

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Solution

The fourth proportional to 79,831.08, 119,597.04 and 71,615.16 is: 107,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,831.08 : 119,597.04 = 71,615.16 : x
  2. Step 2: Convert to fraction form
    79,831.08/119,597.04 = 71,615.16/x
  3. Step 3: Cross multiply
    79,831.08x = 119,597.04 × 71,615.16
  4. Step 4: Simplify right side
    79,831.08x = 8,564,961,155.13
  5. Step 5: Solve for x
    x = 8,564,961,155.13/79,831.08
  6. Step 6: Final answer
    x = 107,288.55

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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.