Home / 130,015.08-194,689.62-89,978.60

Finding the Fourth Proportional to 130,015.08, 194,689.62 and 89,978.60

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Solution

The fourth proportional to 130,015.08, 194,689.62 and 89,978.60 is: 134,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.08 : 194,689.62 = 89,978.60 : x
  2. Step 2: Convert to fraction form
    130,015.08/194,689.62 = 89,978.60/x
  3. Step 3: Cross multiply
    130,015.08x = 194,689.62 × 89,978.60
  4. Step 4: Simplify right side
    130,015.08x = 17,517,899,442.13
  5. Step 5: Solve for x
    x = 17,517,899,442.13/130,015.08
  6. Step 6: Final answer
    x = 134,737.44

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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.