Home / 155,853.06-215,153.46-117,553.02

Finding the Fourth Proportional to 155,853.06, 215,153.46 and 117,553.02

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Solution

The fourth proportional to 155,853.06, 215,153.46 and 117,553.02 is: 162,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,853.06 : 215,153.46 = 117,553.02 : x
  2. Step 2: Convert to fraction form
    155,853.06/215,153.46 = 117,553.02/x
  3. Step 3: Cross multiply
    155,853.06x = 215,153.46 × 117,553.02
  4. Step 4: Simplify right side
    155,853.06x = 25,291,938,986.45
  5. Step 5: Solve for x
    x = 25,291,938,986.45/155,853.06
  6. Step 6: Final answer
    x = 162,280.67

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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.