Home / 153,696.30-212,096.67-85,715.34

Finding the Fourth Proportional to 153,696.30, 212,096.67 and 85,715.34

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Solution

The fourth proportional to 153,696.30, 212,096.67 and 85,715.34 is: 118,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,696.30 : 212,096.67 = 85,715.34 : x
  2. Step 2: Convert to fraction form
    153,696.30/212,096.67 = 85,715.34/x
  3. Step 3: Cross multiply
    153,696.30x = 212,096.67 × 85,715.34
  4. Step 4: Simplify right side
    153,696.30x = 18,179,938,181.92
  5. Step 5: Solve for x
    x = 18,179,938,181.92/153,696.30
  6. Step 6: Final answer
    x = 118,284.81

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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.