Home / 145,861.66-201,368.33-100,781.97

Finding the Fourth Proportional to 145,861.66, 201,368.33 and 100,781.97

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Solution

The fourth proportional to 145,861.66, 201,368.33 and 100,781.97 is: 139,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,861.66 : 201,368.33 = 100,781.97 : x
  2. Step 2: Convert to fraction form
    145,861.66/201,368.33 = 100,781.97/x
  3. Step 3: Cross multiply
    145,861.66x = 201,368.33 × 100,781.97
  4. Step 4: Simplify right side
    145,861.66x = 20,294,297,244.60
  5. Step 5: Solve for x
    x = 20,294,297,244.60/145,861.66
  6. Step 6: Final answer
    x = 139,133.87

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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.