Home / 130,838.55-180,561.56-73,487.96

Finding the Fourth Proportional to 130,838.55, 180,561.56 and 73,487.96

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Solution

The fourth proportional to 130,838.55, 180,561.56 and 73,487.96 is: 101,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,838.55 : 180,561.56 = 73,487.96 : x
  2. Step 2: Convert to fraction form
    130,838.55/180,561.56 = 73,487.96/x
  3. Step 3: Cross multiply
    130,838.55x = 180,561.56 × 73,487.96
  4. Step 4: Simplify right side
    130,838.55x = 13,269,099,428.57
  5. Step 5: Solve for x
    x = 13,269,099,428.57/130,838.55
  6. Step 6: Final answer
    x = 101,415.82

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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.