Home / 111,090.48-153,307.80-68,645.04

Finding the Fourth Proportional to 111,090.48, 153,307.80 and 68,645.04

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Solution

The fourth proportional to 111,090.48, 153,307.80 and 68,645.04 is: 94,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,090.48 : 153,307.80 = 68,645.04 : x
  2. Step 2: Convert to fraction form
    111,090.48/153,307.80 = 68,645.04/x
  3. Step 3: Cross multiply
    111,090.48x = 153,307.80 × 68,645.04
  4. Step 4: Simplify right side
    111,090.48x = 10,523,820,063.31
  5. Step 5: Solve for x
    x = 10,523,820,063.31/111,090.48
  6. Step 6: Final answer
    x = 94,731.97

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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.