Home / 207,220.77-285,965.10-122,343.30

Finding the Fourth Proportional to 207,220.77, 285,965.10 and 122,343.30

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Solution

The fourth proportional to 207,220.77, 285,965.10 and 122,343.30 is: 168,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,220.77 : 285,965.10 = 122,343.30 : x
  2. Step 2: Convert to fraction form
    207,220.77/285,965.10 = 122,343.30/x
  3. Step 3: Cross multiply
    207,220.77x = 285,965.10 × 122,343.30
  4. Step 4: Simplify right side
    207,220.77x = 34,985,914,018.83
  5. Step 5: Solve for x
    x = 34,985,914,018.83/207,220.77
  6. Step 6: Final answer
    x = 168,834.01

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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.