Home / 118,729.56-178,090.02-35,621.40

Finding the Fourth Proportional to 118,729.56, 178,090.02 and 35,621.40

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Solution

The fourth proportional to 118,729.56, 178,090.02 and 35,621.40 is: 53,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,729.56 : 178,090.02 = 35,621.40 : x
  2. Step 2: Convert to fraction form
    118,729.56/178,090.02 = 35,621.40/x
  3. Step 3: Cross multiply
    118,729.56x = 178,090.02 × 35,621.40
  4. Step 4: Simplify right side
    118,729.56x = 6,343,815,838.43
  5. Step 5: Solve for x
    x = 6,343,815,838.43/118,729.56
  6. Step 6: Final answer
    x = 53,430.80

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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.