Home / 117,927.60-176,891.40-78,561.60

Finding the Fourth Proportional to 117,927.60, 176,891.40 and 78,561.60

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Solution

The fourth proportional to 117,927.60, 176,891.40 and 78,561.60 is: 117,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,927.60 : 176,891.40 = 78,561.60 : x
  2. Step 2: Convert to fraction form
    117,927.60/176,891.40 = 78,561.60/x
  3. Step 3: Cross multiply
    117,927.60x = 176,891.40 × 78,561.60
  4. Step 4: Simplify right side
    117,927.60x = 13,896,871,410.24
  5. Step 5: Solve for x
    x = 13,896,871,410.24/117,927.60
  6. Step 6: Final answer
    x = 117,842.40

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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.