Home / 143,048.92-197,387.34-85,674.80

Finding the Fourth Proportional to 143,048.92, 197,387.34 and 85,674.80

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Solution

The fourth proportional to 143,048.92, 197,387.34 and 85,674.80 is: 118,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,048.92 : 197,387.34 = 85,674.80 : x
  2. Step 2: Convert to fraction form
    143,048.92/197,387.34 = 85,674.80/x
  3. Step 3: Cross multiply
    143,048.92x = 197,387.34 × 85,674.80
  4. Step 4: Simplify right side
    143,048.92x = 16,911,120,877.03
  5. Step 5: Solve for x
    x = 16,911,120,877.03/143,048.92
  6. Step 6: Final answer
    x = 118,219.14

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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.