Home / 130,655.66-180,315.30-76,224.56

Finding the Fourth Proportional to 130,655.66, 180,315.30 and 76,224.56

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Solution

The fourth proportional to 130,655.66, 180,315.30 and 76,224.56 is: 105,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,655.66 : 180,315.30 = 76,224.56 : x
  2. Step 2: Convert to fraction form
    130,655.66/180,315.30 = 76,224.56/x
  3. Step 3: Cross multiply
    130,655.66x = 180,315.30 × 76,224.56
  4. Step 4: Simplify right side
    130,655.66x = 13,744,454,403.77
  5. Step 5: Solve for x
    x = 13,744,454,403.77/130,655.66
  6. Step 6: Final answer
    x = 105,196.01

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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.