Home / 130,384.24-179,932.80-85,091.20

Finding the Fourth Proportional to 130,384.24, 179,932.80 and 85,091.20

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Solution

The fourth proportional to 130,384.24, 179,932.80 and 85,091.20 is: 117,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,384.24 : 179,932.80 = 85,091.20 : x
  2. Step 2: Convert to fraction form
    130,384.24/179,932.80 = 85,091.20/x
  3. Step 3: Cross multiply
    130,384.24x = 179,932.80 × 85,091.20
  4. Step 4: Simplify right side
    130,384.24x = 15,310,697,871.36
  5. Step 5: Solve for x
    x = 15,310,697,871.36/130,384.24
  6. Step 6: Final answer
    x = 117,427.52

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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.