Home / 191,829.69-287,921.79-97,126.38

Finding the Fourth Proportional to 191,829.69, 287,921.79 and 97,126.38

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Solution

The fourth proportional to 191,829.69, 287,921.79 and 97,126.38 is: 145,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,829.69 : 287,921.79 = 97,126.38 : x
  2. Step 2: Convert to fraction form
    191,829.69/287,921.79 = 97,126.38/x
  3. Step 3: Cross multiply
    191,829.69x = 287,921.79 × 97,126.38
  4. Step 4: Simplify right side
    191,829.69x = 27,964,801,185.82
  5. Step 5: Solve for x
    x = 27,964,801,185.82/191,829.69
  6. Step 6: Final answer
    x = 145,779.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.