Home / 120,438.38-180,605.18-64,266.06

Finding the Fourth Proportional to 120,438.38, 180,605.18 and 64,266.06

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Solution

The fourth proportional to 120,438.38, 180,605.18 and 64,266.06 is: 96,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,438.38 : 180,605.18 = 64,266.06 : x
  2. Step 2: Convert to fraction form
    120,438.38/180,605.18 = 64,266.06/x
  3. Step 3: Cross multiply
    120,438.38x = 180,605.18 × 64,266.06
  4. Step 4: Simplify right side
    120,438.38x = 11,606,783,334.19
  5. Step 5: Solve for x
    x = 11,606,783,334.19/120,438.38
  6. Step 6: Final answer
    x = 96,371.13

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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.