Home / 116,785.42-161,165.10-66,487.66

Finding the Fourth Proportional to 116,785.42, 161,165.10 and 66,487.66

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Solution

The fourth proportional to 116,785.42, 161,165.10 and 66,487.66 is: 91,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,785.42 : 161,165.10 = 66,487.66 : x
  2. Step 2: Convert to fraction form
    116,785.42/161,165.10 = 66,487.66/x
  3. Step 3: Cross multiply
    116,785.42x = 161,165.10 × 66,487.66
  4. Step 4: Simplify right side
    116,785.42x = 10,715,490,372.67
  5. Step 5: Solve for x
    x = 10,715,490,372.67/116,785.42
  6. Step 6: Final answer
    x = 91,753.67

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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.