Home / 134,833.15-186,106.76-78,262.75

Finding the Fourth Proportional to 134,833.15, 186,106.76 and 78,262.75

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Solution

The fourth proportional to 134,833.15, 186,106.76 and 78,262.75 is: 108,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,833.15 : 186,106.76 = 78,262.75 : x
  2. Step 2: Convert to fraction form
    134,833.15/186,106.76 = 78,262.75/x
  3. Step 3: Cross multiply
    134,833.15x = 186,106.76 × 78,262.75
  4. Step 4: Simplify right side
    134,833.15x = 14,565,226,831.19
  5. Step 5: Solve for x
    x = 14,565,226,831.19/134,833.15
  6. Step 6: Final answer
    x = 108,024.08

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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.