Home / 399,639.04-599,444.72-100,122.16

Finding the Fourth Proportional to 399,639.04, 599,444.72 and 100,122.16

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Solution

The fourth proportional to 399,639.04, 599,444.72 and 100,122.16 is: 150,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,639.04 : 599,444.72 = 100,122.16 : x
  2. Step 2: Convert to fraction form
    399,639.04/599,444.72 = 100,122.16/x
  3. Step 3: Cross multiply
    399,639.04x = 599,444.72 × 100,122.16
  4. Step 4: Simplify right side
    399,639.04x = 60,017,700,167.00
  5. Step 5: Solve for x
    x = 60,017,700,167.00/399,639.04
  6. Step 6: Final answer
    x = 150,179.77

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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.