Home / 118,666.70-178,000.05-74,429.90

Finding the Fourth Proportional to 118,666.70, 178,000.05 and 74,429.90

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Solution

The fourth proportional to 118,666.70, 178,000.05 and 74,429.90 is: 111,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.70 : 178,000.05 = 74,429.90 : x
  2. Step 2: Convert to fraction form
    118,666.70/178,000.05 = 74,429.90/x
  3. Step 3: Cross multiply
    118,666.70x = 178,000.05 × 74,429.90
  4. Step 4: Simplify right side
    118,666.70x = 13,248,525,921.50
  5. Step 5: Solve for x
    x = 13,248,525,921.50/118,666.70
  6. Step 6: Final answer
    x = 111,644.85

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1.5x scale

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.