Home / 118,734,139.40-178,101,209.10-91,827,105.80

Finding the Fourth Proportional to 118,734,139.40, 178,101,209.10 and 91,827,105.80

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Solution

The fourth proportional to 118,734,139.40, 178,101,209.10 and 91,827,105.80 is: 137,740,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,734,139.40 : 178,101,209.10 = 91,827,105.80 : x
  2. Step 2: Convert to fraction form
    118,734,139.40/178,101,209.10 = 91,827,105.80/x
  3. Step 3: Cross multiply
    118,734,139.40x = 178,101,209.10 × 91,827,105.80
  4. Step 4: Simplify right side
    118,734,139.40x = 16,354,518,571,133,622
  5. Step 5: Solve for x
    x = 16,354,518,571,133,622/118,734,139.40
  6. Step 6: Final answer
    x = 137,740,658.70

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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.