Home / 161,916.72-223,437.60-90,293.28

Finding the Fourth Proportional to 161,916.72, 223,437.60 and 90,293.28

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Solution

The fourth proportional to 161,916.72, 223,437.60 and 90,293.28 is: 124,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,916.72 : 223,437.60 = 90,293.28 : x
  2. Step 2: Convert to fraction form
    161,916.72/223,437.60 = 90,293.28/x
  3. Step 3: Cross multiply
    161,916.72x = 223,437.60 × 90,293.28
  4. Step 4: Simplify right side
    161,916.72x = 20,174,913,779.33
  5. Step 5: Solve for x
    x = 20,174,913,779.33/161,916.72
  6. Step 6: Final answer
    x = 124,600.56

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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.