Home / 153,768.72-212,215.44-96,417.12

Finding the Fourth Proportional to 153,768.72, 212,215.44 and 96,417.12

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Solution

The fourth proportional to 153,768.72, 212,215.44 and 96,417.12 is: 133,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,768.72 : 212,215.44 = 96,417.12 : x
  2. Step 2: Convert to fraction form
    153,768.72/212,215.44 = 96,417.12/x
  3. Step 3: Cross multiply
    153,768.72x = 212,215.44 × 96,417.12
  4. Step 4: Simplify right side
    153,768.72x = 20,461,201,544.33
  5. Step 5: Solve for x
    x = 20,461,201,544.33/153,768.72
  6. Step 6: Final answer
    x = 133,064.78

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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.