Home / 130,995.56-180,764.16-74,396

Finding the Fourth Proportional to 130,995.56, 180,764.16 and 74,396

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Solution

The fourth proportional to 130,995.56, 180,764.16 and 74,396 is: 102,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,995.56 : 180,764.16 = 74,396 : x
  2. Step 2: Convert to fraction form
    130,995.56/180,764.16 = 74,396/x
  3. Step 3: Cross multiply
    130,995.56x = 180,764.16 × 74,396
  4. Step 4: Simplify right side
    130,995.56x = 13,448,130,447.36
  5. Step 5: Solve for x
    x = 13,448,130,447.36/130,995.56
  6. Step 6: Final answer
    x = 102,660.96

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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.