Home / 109,021.14-150,457.10-66,587.67

Finding the Fourth Proportional to 109,021.14, 150,457.10 and 66,587.67

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Solution

The fourth proportional to 109,021.14, 150,457.10 and 66,587.67 is: 91,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,021.14 : 150,457.10 = 66,587.67 : x
  2. Step 2: Convert to fraction form
    109,021.14/150,457.10 = 66,587.67/x
  3. Step 3: Cross multiply
    109,021.14x = 150,457.10 × 66,587.67
  4. Step 4: Simplify right side
    109,021.14x = 10,018,587,391.02
  5. Step 5: Solve for x
    x = 10,018,587,391.02/109,021.14
  6. Step 6: Final answer
    x = 91,895.82

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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.