Home / 118,079.28-177,080.40-39,172.32

Finding the Fourth Proportional to 118,079.28, 177,080.40 and 39,172.32

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Solution

The fourth proportional to 118,079.28, 177,080.40 and 39,172.32 is: 58,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,079.28 : 177,080.40 = 39,172.32 : x
  2. Step 2: Convert to fraction form
    118,079.28/177,080.40 = 39,172.32/x
  3. Step 3: Cross multiply
    118,079.28x = 177,080.40 × 39,172.32
  4. Step 4: Simplify right side
    118,079.28x = 6,936,650,094.53
  5. Step 5: Solve for x
    x = 6,936,650,094.53/118,079.28
  6. Step 6: Final answer
    x = 58,745.70

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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.