Home / 153,825.30-212,279.39-85,845.15

Finding the Fourth Proportional to 153,825.30, 212,279.39 and 85,845.15

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Solution

The fourth proportional to 153,825.30, 212,279.39 and 85,845.15 is: 118,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,825.30 : 212,279.39 = 85,845.15 : x
  2. Step 2: Convert to fraction form
    153,825.30/212,279.39 = 85,845.15/x
  3. Step 3: Cross multiply
    153,825.30x = 212,279.39 × 85,845.15
  4. Step 4: Simplify right side
    153,825.30x = 18,223,156,076.46
  5. Step 5: Solve for x
    x = 18,223,156,076.46/153,825.30
  6. Step 6: Final answer
    x = 118,466.57

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1.5x scale

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.