Home / 153,538.93-211,786.81-105,709.24

Finding the Fourth Proportional to 153,538.93, 211,786.81 and 105,709.24

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Solution

The fourth proportional to 153,538.93, 211,786.81 and 105,709.24 is: 145,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,538.93 : 211,786.81 = 105,709.24 : x
  2. Step 2: Convert to fraction form
    153,538.93/211,786.81 = 105,709.24/x
  3. Step 3: Cross multiply
    153,538.93x = 211,786.81 × 105,709.24
  4. Step 4: Simplify right side
    153,538.93x = 22,387,822,727.12
  5. Step 5: Solve for x
    x = 22,387,822,727.12/153,538.93
  6. Step 6: Final answer
    x = 145,812.03

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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.