Home / 155,669.72-214,835.10-88,601.72

Finding the Fourth Proportional to 155,669.72, 214,835.10 and 88,601.72

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Solution

The fourth proportional to 155,669.72, 214,835.10 and 88,601.72 is: 122,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,669.72 : 214,835.10 = 88,601.72 : x
  2. Step 2: Convert to fraction form
    155,669.72/214,835.10 = 88,601.72/x
  3. Step 3: Cross multiply
    155,669.72x = 214,835.10 × 88,601.72
  4. Step 4: Simplify right side
    155,669.72x = 19,034,759,376.37
  5. Step 5: Solve for x
    x = 19,034,759,376.37/155,669.72
  6. Step 6: Final answer
    x = 122,276.57

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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.