Home / 128,319-192,475.26-34,822.32

Finding the Fourth Proportional to 128,319, 192,475.26 and 34,822.32

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Solution

The fourth proportional to 128,319, 192,475.26 and 34,822.32 is: 52,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,319 : 192,475.26 = 34,822.32 : x
  2. Step 2: Convert to fraction form
    128,319/192,475.26 = 34,822.32/x
  3. Step 3: Cross multiply
    128,319x = 192,475.26 × 34,822.32
  4. Step 4: Simplify right side
    128,319x = 6,702,435,095.80
  5. Step 5: Solve for x
    x = 6,702,435,095.80/128,319
  6. Step 6: Final answer
    x = 52,232.60

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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.