Home / 130,795.41-180,503.61-77,082.69

Finding the Fourth Proportional to 130,795.41, 180,503.61 and 77,082.69

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Solution

The fourth proportional to 130,795.41, 180,503.61 and 77,082.69 is: 106,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,795.41 : 180,503.61 = 77,082.69 : x
  2. Step 2: Convert to fraction form
    130,795.41/180,503.61 = 77,082.69/x
  3. Step 3: Cross multiply
    130,795.41x = 180,503.61 × 77,082.69
  4. Step 4: Simplify right side
    130,795.41x = 13,913,703,813.51
  5. Step 5: Solve for x
    x = 13,913,703,813.51/130,795.41
  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.