Home / 191,109.78-263,731.66-105,070.22

Finding the Fourth Proportional to 191,109.78, 263,731.66 and 105,070.22

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Solution

The fourth proportional to 191,109.78, 263,731.66 and 105,070.22 is: 144,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,109.78 : 263,731.66 = 105,070.22 : x
  2. Step 2: Convert to fraction form
    191,109.78/263,731.66 = 105,070.22/x
  3. Step 3: Cross multiply
    191,109.78x = 263,731.66 × 105,070.22
  4. Step 4: Simplify right side
    191,109.78x = 27,710,343,933.82
  5. Step 5: Solve for x
    x = 27,710,343,933.82/191,109.78
  6. Step 6: Final answer
    x = 144,997.00

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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.