Home / 130,037.60-195,056.40-51,125.60

Finding the Fourth Proportional to 130,037.60, 195,056.40 and 51,125.60

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Solution

The fourth proportional to 130,037.60, 195,056.40 and 51,125.60 is: 76,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,037.60 : 195,056.40 = 51,125.60 : x
  2. Step 2: Convert to fraction form
    130,037.60/195,056.40 = 51,125.60/x
  3. Step 3: Cross multiply
    130,037.60x = 195,056.40 × 51,125.60
  4. Step 4: Simplify right side
    130,037.60x = 9,972,375,483.84
  5. Step 5: Solve for x
    x = 9,972,375,483.84/130,037.60
  6. Step 6: Final answer
    x = 76,688.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.