Home / 112,386.44-155,090.64-61,399.44

Finding the Fourth Proportional to 112,386.44, 155,090.64 and 61,399.44

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Solution

The fourth proportional to 112,386.44, 155,090.64 and 61,399.44 is: 84,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,386.44 : 155,090.64 = 61,399.44 : x
  2. Step 2: Convert to fraction form
    112,386.44/155,090.64 = 61,399.44/x
  3. Step 3: Cross multiply
    112,386.44x = 155,090.64 × 61,399.44
  4. Step 4: Simplify right side
    112,386.44x = 9,522,478,445.24
  5. Step 5: Solve for x
    x = 9,522,478,445.24/112,386.44
  6. Step 6: Final answer
    x = 84,729.78

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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.