Home / 201,890.40-302,471.10-117,581.55

Finding the Fourth Proportional to 201,890.40, 302,471.10 and 117,581.55

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Solution

The fourth proportional to 201,890.40, 302,471.10 and 117,581.55 is: 176,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,890.40 : 302,471.10 = 117,581.55 : x
  2. Step 2: Convert to fraction form
    201,890.40/302,471.10 = 117,581.55/x
  3. Step 3: Cross multiply
    201,890.40x = 302,471.10 × 117,581.55
  4. Step 4: Simplify right side
    201,890.40x = 35,565,020,768.21
  5. Step 5: Solve for x
    x = 35,565,020,768.21/201,890.40
  6. Step 6: Final answer
    x = 176,160.04

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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.