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Finding the Fourth Proportional to 119,345.93, 178,980.62 and 39,365.94

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Solution

The fourth proportional to 119,345.93, 178,980.62 and 39,365.94 is: 59,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,345.93 : 178,980.62 = 39,365.94 : x
  2. Step 2: Convert to fraction form
    119,345.93/178,980.62 = 39,365.94/x
  3. Step 3: Cross multiply
    119,345.93x = 178,980.62 × 39,365.94
  4. Step 4: Simplify right side
    119,345.93x = 7,045,740,151.25
  5. Step 5: Solve for x
    x = 7,045,740,151.25/119,345.93
  6. Step 6: Final answer
    x = 59,036.29

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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.