Home / 153,039.92-211,193.61-85,057.16

Finding the Fourth Proportional to 153,039.92, 211,193.61 and 85,057.16

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Solution

The fourth proportional to 153,039.92, 211,193.61 and 85,057.16 is: 117,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,039.92 : 211,193.61 = 85,057.16 : x
  2. Step 2: Convert to fraction form
    153,039.92/211,193.61 = 85,057.16/x
  3. Step 3: Cross multiply
    153,039.92x = 211,193.61 × 85,057.16
  4. Step 4: Simplify right side
    153,039.92x = 17,963,528,676.75
  5. Step 5: Solve for x
    x = 17,963,528,676.75/153,039.92
  6. Step 6: Final answer
    x = 117,378.06

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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.