Home / 150,194.51-207,269.08-81,283.98

Finding the Fourth Proportional to 150,194.51, 207,269.08 and 81,283.98

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Solution

The fourth proportional to 150,194.51, 207,269.08 and 81,283.98 is: 112,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,194.51 : 207,269.08 = 81,283.98 : x
  2. Step 2: Convert to fraction form
    150,194.51/207,269.08 = 81,283.98/x
  3. Step 3: Cross multiply
    150,194.51x = 207,269.08 × 81,283.98
  4. Step 4: Simplify right side
    150,194.51x = 16,847,655,753.34
  5. Step 5: Solve for x
    x = 16,847,655,753.34/150,194.51
  6. Step 6: Final answer
    x = 112,172.25

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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.