Home / 97,690.15-146,533.64-31,129.38

Finding the Fourth Proportional to 97,690.15, 146,533.64 and 31,129.38

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Solution

The fourth proportional to 97,690.15, 146,533.64 and 31,129.38 is: 46,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,690.15 : 146,533.64 = 31,129.38 : x
  2. Step 2: Convert to fraction form
    97,690.15/146,533.64 = 31,129.38/x
  3. Step 3: Cross multiply
    97,690.15x = 146,533.64 × 31,129.38
  4. Step 4: Simplify right side
    97,690.15x = 4,561,501,206.70
  5. Step 5: Solve for x
    x = 4,561,501,206.70/97,690.15
  6. Step 6: Final answer
    x = 46,693.56

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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.