Home / 111,514.48-153,885.36-61,214.56

Finding the Fourth Proportional to 111,514.48, 153,885.36 and 61,214.56

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Solution

The fourth proportional to 111,514.48, 153,885.36 and 61,214.56 is: 84,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,514.48 : 153,885.36 = 61,214.56 : x
  2. Step 2: Convert to fraction form
    111,514.48/153,885.36 = 61,214.56/x
  3. Step 3: Cross multiply
    111,514.48x = 153,885.36 × 61,214.56
  4. Step 4: Simplify right side
    111,514.48x = 9,420,024,602.84
  5. Step 5: Solve for x
    x = 9,420,024,602.84/111,514.48
  6. Step 6: Final answer
    x = 84,473.56

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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.