Home / 134,455.70-201,683.55-90,218.90

Finding the Fourth Proportional to 134,455.70, 201,683.55 and 90,218.90

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Solution

The fourth proportional to 134,455.70, 201,683.55 and 90,218.90 is: 135,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,455.70 : 201,683.55 = 90,218.90 : x
  2. Step 2: Convert to fraction form
    134,455.70/201,683.55 = 90,218.90/x
  3. Step 3: Cross multiply
    134,455.70x = 201,683.55 × 90,218.90
  4. Step 4: Simplify right side
    134,455.70x = 18,195,668,029.10
  5. Step 5: Solve for x
    x = 18,195,668,029.10/134,455.70
  6. Step 6: Final answer
    x = 135,328.35

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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.