Home / 141,807.54-195,703.11-78,145.32

Finding the Fourth Proportional to 141,807.54, 195,703.11 and 78,145.32

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Solution

The fourth proportional to 141,807.54, 195,703.11 and 78,145.32 is: 107,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,807.54 : 195,703.11 = 78,145.32 : x
  2. Step 2: Convert to fraction form
    141,807.54/195,703.11 = 78,145.32/x
  3. Step 3: Cross multiply
    141,807.54x = 195,703.11 × 78,145.32
  4. Step 4: Simplify right side
    141,807.54x = 15,293,282,155.95
  5. Step 5: Solve for x
    x = 15,293,282,155.95/141,807.54
  6. Step 6: Final answer
    x = 107,845.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.