Home / 130,056.40-195,084.60-76,693.60

Finding the Fourth Proportional to 130,056.40, 195,084.60 and 76,693.60

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Solution

The fourth proportional to 130,056.40, 195,084.60 and 76,693.60 is: 115,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,056.40 : 195,084.60 = 76,693.60 : x
  2. Step 2: Convert to fraction form
    130,056.40/195,084.60 = 76,693.60/x
  3. Step 3: Cross multiply
    130,056.40x = 195,084.60 × 76,693.60
  4. Step 4: Simplify right side
    130,056.40x = 14,961,740,278.56
  5. Step 5: Solve for x
    x = 14,961,740,278.56/130,056.40
  6. Step 6: Final answer
    x = 115,040.40

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1.5x scale

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.