Home / 153,057.20-211,206.79-85,068.83

Finding the Fourth Proportional to 153,057.20, 211,206.79 and 85,068.83

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Solution

The fourth proportional to 153,057.20, 211,206.79 and 85,068.83 is: 117,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,057.20 : 211,206.79 = 85,068.83 : x
  2. Step 2: Convert to fraction form
    153,057.20/211,206.79 = 85,068.83/x
  3. Step 3: Cross multiply
    153,057.20x = 211,206.79 × 85,068.83
  4. Step 4: Simplify right side
    153,057.20x = 17,967,115,147.71
  5. Step 5: Solve for x
    x = 17,967,115,147.71/153,057.20
  6. Step 6: Final answer
    x = 117,388.24

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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.