Home / 130,605.63-180,246.51-73,243.86

Finding the Fourth Proportional to 130,605.63, 180,246.51 and 73,243.86

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Solution

The fourth proportional to 130,605.63, 180,246.51 and 73,243.86 is: 101,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,605.63 : 180,246.51 = 73,243.86 : x
  2. Step 2: Convert to fraction form
    130,605.63/180,246.51 = 73,243.86/x
  3. Step 3: Cross multiply
    130,605.63x = 180,246.51 × 73,243.86
  4. Step 4: Simplify right side
    130,605.63x = 13,201,950,143.93
  5. Step 5: Solve for x
    x = 13,201,950,143.93/130,605.63
  6. Step 6: Final answer
    x = 101,082.55

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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.