Home / 111,652.04-154,079.78-61,354.28

Finding the Fourth Proportional to 111,652.04, 154,079.78 and 61,354.28

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Solution

The fourth proportional to 111,652.04, 154,079.78 and 61,354.28 is: 84,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652.04 : 154,079.78 = 61,354.28 : x
  2. Step 2: Convert to fraction form
    111,652.04/154,079.78 = 61,354.28/x
  3. Step 3: Cross multiply
    111,652.04x = 154,079.78 × 61,354.28
  4. Step 4: Simplify right side
    111,652.04x = 9,453,453,964.46
  5. Step 5: Solve for x
    x = 9,453,453,964.46/111,652.04
  6. Step 6: Final answer
    x = 84,668.89

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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.