Home / 134,255.80-201,210.90-81,609.40

Finding the Fourth Proportional to 134,255.80, 201,210.90 and 81,609.40

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Solution

The fourth proportional to 134,255.80, 201,210.90 and 81,609.40 is: 122,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,255.80 : 201,210.90 = 81,609.40 : x
  2. Step 2: Convert to fraction form
    134,255.80/201,210.90 = 81,609.40/x
  3. Step 3: Cross multiply
    134,255.80x = 201,210.90 × 81,609.40
  4. Step 4: Simplify right side
    134,255.80x = 16,420,700,822.46
  5. Step 5: Solve for x
    x = 16,420,700,822.46/134,255.80
  6. Step 6: Final answer
    x = 122,309.06

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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.