Home / 111,575.02-153,929.01-71,278.33

Finding the Fourth Proportional to 111,575.02, 153,929.01 and 71,278.33

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Solution

The fourth proportional to 111,575.02, 153,929.01 and 71,278.33 is: 98,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,575.02 : 153,929.01 = 71,278.33 : x
  2. Step 2: Convert to fraction form
    111,575.02/153,929.01 = 71,278.33/x
  3. Step 3: Cross multiply
    111,575.02x = 153,929.01 × 71,278.33
  4. Step 4: Simplify right side
    111,575.02x = 10,971,802,771.35
  5. Step 5: Solve for x
    x = 10,971,802,771.35/111,575.02
  6. Step 6: Final answer
    x = 98,335.66

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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.