Home / 185,955.12-279,051.48-67,615.20

Finding the Fourth Proportional to 185,955.12, 279,051.48 and 67,615.20

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Solution

The fourth proportional to 185,955.12, 279,051.48 and 67,615.20 is: 101,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,955.12 : 279,051.48 = 67,615.20 : x
  2. Step 2: Convert to fraction form
    185,955.12/279,051.48 = 67,615.20/x
  3. Step 3: Cross multiply
    185,955.12x = 279,051.48 × 67,615.20
  4. Step 4: Simplify right side
    185,955.12x = 18,868,121,630.50
  5. Step 5: Solve for x
    x = 18,868,121,630.50/185,955.12
  6. Step 6: Final answer
    x = 101,466.00

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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.