Home / 128,303.46-192,455.87-34,809.21

Finding the Fourth Proportional to 128,303.46, 192,455.87 and 34,809.21

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Solution

The fourth proportional to 128,303.46, 192,455.87 and 34,809.21 is: 52,214.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,303.46 : 192,455.87 = 34,809.21 : x
  2. Step 2: Convert to fraction form
    128,303.46/192,455.87 = 34,809.21/x
  3. Step 3: Cross multiply
    128,303.46x = 192,455.87 × 34,809.21
  4. Step 4: Simplify right side
    128,303.46x = 6,699,236,620.52
  5. Step 5: Solve for x
    x = 6,699,236,620.52/128,303.46
  6. Step 6: Final answer
    x = 52,214.00

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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.