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Finding the Fourth Proportional to 155,303.89, 232,917.36 and 66,547.33

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Solution

The fourth proportional to 155,303.89, 232,917.36 and 66,547.33 is: 99,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,303.89 : 232,917.36 = 66,547.33 : x
  2. Step 2: Convert to fraction form
    155,303.89/232,917.36 = 66,547.33/x
  3. Step 3: Cross multiply
    155,303.89x = 232,917.36 × 66,547.33
  4. Step 4: Simplify right side
    155,303.89x = 15,500,028,418.65
  5. Step 5: Solve for x
    x = 15,500,028,418.65/155,303.89
  6. Step 6: Final answer
    x = 99,804.51

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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.