Home / 158,514.08-218,959.02-118,157.72

Finding the Fourth Proportional to 158,514.08, 218,959.02 and 118,157.72

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Solution

The fourth proportional to 158,514.08, 218,959.02 and 118,157.72 is: 163,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,514.08 : 218,959.02 = 118,157.72 : x
  2. Step 2: Convert to fraction form
    158,514.08/218,959.02 = 118,157.72/x
  3. Step 3: Cross multiply
    158,514.08x = 218,959.02 × 118,157.72
  4. Step 4: Simplify right side
    158,514.08x = 25,871,697,481.84
  5. Step 5: Solve for x
    x = 25,871,697,481.84/158,514.08
  6. Step 6: Final answer
    x = 163,213.88

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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.