Home / 130,025.60-195,038.40-79,943.30

Finding the Fourth Proportional to 130,025.60, 195,038.40 and 79,943.30

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Solution

The fourth proportional to 130,025.60, 195,038.40 and 79,943.30 is: 119,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,025.60 : 195,038.40 = 79,943.30 : x
  2. Step 2: Convert to fraction form
    130,025.60/195,038.40 = 79,943.30/x
  3. Step 3: Cross multiply
    130,025.60x = 195,038.40 × 79,943.30
  4. Step 4: Simplify right side
    130,025.60x = 15,592,013,322.72
  5. Step 5: Solve for x
    x = 15,592,013,322.72/130,025.60
  6. Step 6: Final answer
    x = 119,914.95

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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.