Home / 130,795.42-180,503.60-77,082.70

Finding the Fourth Proportional to 130,795.42, 180,503.60 and 77,082.70

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Solution

The fourth proportional to 130,795.42, 180,503.60 and 77,082.70 is: 106,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,795.42 : 180,503.60 = 77,082.70 : x
  2. Step 2: Convert to fraction form
    130,795.42/180,503.60 = 77,082.70/x
  3. Step 3: Cross multiply
    130,795.42x = 180,503.60 × 77,082.70
  4. Step 4: Simplify right side
    130,795.42x = 13,913,704,847.72
  5. Step 5: Solve for x
    x = 13,913,704,847.72/130,795.42
  6. Step 6: Final answer
    x = 106,377.62

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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.