Home / 155,208.73-232,763.89-66,438.40

Finding the Fourth Proportional to 155,208.73, 232,763.89 and 66,438.40

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Solution

The fourth proportional to 155,208.73, 232,763.89 and 66,438.40 is: 99,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,208.73 : 232,763.89 = 66,438.40 : x
  2. Step 2: Convert to fraction form
    155,208.73/232,763.89 = 66,438.40/x
  3. Step 3: Cross multiply
    155,208.73x = 232,763.89 × 66,438.40
  4. Step 4: Simplify right side
    155,208.73x = 15,464,460,429.38
  5. Step 5: Solve for x
    x = 15,464,460,429.38/155,208.73
  6. Step 6: Final answer
    x = 99,636.54

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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.