Home / 130,813.60-180,516.48-73,445.86

Finding the Fourth Proportional to 130,813.60, 180,516.48 and 73,445.86

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Solution

The fourth proportional to 130,813.60, 180,516.48 and 73,445.86 is: 101,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,813.60 : 180,516.48 = 73,445.86 : x
  2. Step 2: Convert to fraction form
    130,813.60/180,516.48 = 73,445.86/x
  3. Step 3: Cross multiply
    130,813.60x = 180,516.48 × 73,445.86
  4. Step 4: Simplify right side
    130,813.60x = 13,258,188,117.77
  5. Step 5: Solve for x
    x = 13,258,188,117.77/130,813.60
  6. Step 6: Final answer
    x = 101,351.76

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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.