Home / 130,472.00-180,051.26-73,111.78

Finding the Fourth Proportional to 130,472.00, 180,051.26 and 73,111.78

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Solution

The fourth proportional to 130,472.00, 180,051.26 and 73,111.78 is: 100,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,472.00 : 180,051.26 = 73,111.78 : x
  2. Step 2: Convert to fraction form
    130,472.00/180,051.26 = 73,111.78/x
  3. Step 3: Cross multiply
    130,472.00x = 180,051.26 × 73,111.78
  4. Step 4: Simplify right side
    130,472.00x = 13,163,867,969.35
  5. Step 5: Solve for x
    x = 13,163,867,969.35/130,472.00
  6. Step 6: Final answer
    x = 100,894.20

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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.