Home / 134,641.09-185,793.78-78,056.11

Finding the Fourth Proportional to 134,641.09, 185,793.78 and 78,056.11

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Solution

The fourth proportional to 134,641.09, 185,793.78 and 78,056.11 is: 107,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,641.09 : 185,793.78 = 78,056.11 : x
  2. Step 2: Convert to fraction form
    134,641.09/185,793.78 = 78,056.11/x
  3. Step 3: Cross multiply
    134,641.09x = 185,793.78 × 78,056.11
  4. Step 4: Simplify right side
    134,641.09x = 14,502,339,729.00
  5. Step 5: Solve for x
    x = 14,502,339,729.00/134,641.09
  6. Step 6: Final answer
    x = 107,711.10

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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.