Home / 130,945.60-180,698.52-74,355.76

Finding the Fourth Proportional to 130,945.60, 180,698.52 and 74,355.76

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Solution

The fourth proportional to 130,945.60, 180,698.52 and 74,355.76 is: 102,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.60 : 180,698.52 = 74,355.76 : x
  2. Step 2: Convert to fraction form
    130,945.60/180,698.52 = 74,355.76/x
  3. Step 3: Cross multiply
    130,945.60x = 180,698.52 × 74,355.76
  4. Step 4: Simplify right side
    130,945.60x = 13,435,975,785.48
  5. Step 5: Solve for x
    x = 13,435,975,785.48/130,945.60
  6. Step 6: Final answer
    x = 102,607.31

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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.