Home / 207,163.60-285,812.04-122,238.16

Finding the Fourth Proportional to 207,163.60, 285,812.04 and 122,238.16

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Solution

The fourth proportional to 207,163.60, 285,812.04 and 122,238.16 is: 168,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,163.60 : 285,812.04 = 122,238.16 : x
  2. Step 2: Convert to fraction form
    207,163.60/285,812.04 = 122,238.16/x
  3. Step 3: Cross multiply
    207,163.60x = 285,812.04 × 122,238.16
  4. Step 4: Simplify right side
    207,163.60x = 34,937,137,875.45
  5. Step 5: Solve for x
    x = 34,937,137,875.45/207,163.60
  6. Step 6: Final answer
    x = 168,645.16

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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.