Home / 130,055.60-195,094.20-51,172.40

Finding the Fourth Proportional to 130,055.60, 195,094.20 and 51,172.40

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Solution

The fourth proportional to 130,055.60, 195,094.20 and 51,172.40 is: 76,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,055.60 : 195,094.20 = 51,172.40 : x
  2. Step 2: Convert to fraction form
    130,055.60/195,094.20 = 51,172.40/x
  3. Step 3: Cross multiply
    130,055.60x = 195,094.20 × 51,172.40
  4. Step 4: Simplify right side
    130,055.60x = 9,983,438,440.08
  5. Step 5: Solve for x
    x = 9,983,438,440.08/130,055.60
  6. Step 6: Final answer
    x = 76,762.85

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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.