Home / 155,539.08-214,648.78-88,475.40

Finding the Fourth Proportional to 155,539.08, 214,648.78 and 88,475.40

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Solution

The fourth proportional to 155,539.08, 214,648.78 and 88,475.40 is: 122,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,539.08 : 214,648.78 = 88,475.40 : x
  2. Step 2: Convert to fraction form
    155,539.08/214,648.78 = 88,475.40/x
  3. Step 3: Cross multiply
    155,539.08x = 214,648.78 × 88,475.40
  4. Step 4: Simplify right side
    155,539.08x = 18,991,136,670.01
  5. Step 5: Solve for x
    x = 18,991,136,670.01/155,539.08
  6. Step 6: Final answer
    x = 122,098.81

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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.