Home / 134,442.02-201,441.15-78,124.04

Finding the Fourth Proportional to 134,442.02, 201,441.15 and 78,124.04

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Solution

The fourth proportional to 134,442.02, 201,441.15 and 78,124.04 is: 117,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,442.02 : 201,441.15 = 78,124.04 : x
  2. Step 2: Convert to fraction form
    134,442.02/201,441.15 = 78,124.04/x
  3. Step 3: Cross multiply
    134,442.02x = 201,441.15 × 78,124.04
  4. Step 4: Simplify right side
    134,442.02x = 15,737,396,460.25
  5. Step 5: Solve for x
    x = 15,737,396,460.25/134,442.02
  6. Step 6: Final answer
    x = 117,057.13

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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.