Home / 111,758.48-154,222.68-61,457.12

Finding the Fourth Proportional to 111,758.48, 154,222.68 and 61,457.12

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Solution

The fourth proportional to 111,758.48, 154,222.68 and 61,457.12 is: 84,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,758.48 : 154,222.68 = 61,457.12 : x
  2. Step 2: Convert to fraction form
    111,758.48/154,222.68 = 61,457.12/x
  3. Step 3: Cross multiply
    111,758.48x = 154,222.68 × 61,457.12
  4. Step 4: Simplify right side
    111,758.48x = 9,478,081,751.48
  5. Step 5: Solve for x
    x = 9,478,081,751.48/111,758.48
  6. Step 6: Final answer
    x = 84,808.61

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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.