Home / 130,558.50-180,178.02-73,988.10

Finding the Fourth Proportional to 130,558.50, 180,178.02 and 73,988.10

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Solution

The fourth proportional to 130,558.50, 180,178.02 and 73,988.10 is: 102,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,558.50 : 180,178.02 = 73,988.10 : x
  2. Step 2: Convert to fraction form
    130,558.50/180,178.02 = 73,988.10/x
  3. Step 3: Cross multiply
    130,558.50x = 180,178.02 × 73,988.10
  4. Step 4: Simplify right side
    130,558.50x = 13,331,029,361.56
  5. Step 5: Solve for x
    x = 13,331,029,361.56/130,558.50
  6. Step 6: Final answer
    x = 102,107.71

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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.