Home / 156,907.06-216,533.07-85,287.07

Finding the Fourth Proportional to 156,907.06, 216,533.07 and 85,287.07

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Solution

The fourth proportional to 156,907.06, 216,533.07 and 85,287.07 is: 117,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907.06 : 216,533.07 = 85,287.07 : x
  2. Step 2: Convert to fraction form
    156,907.06/216,533.07 = 85,287.07/x
  3. Step 3: Cross multiply
    156,907.06x = 216,533.07 × 85,287.07
  4. Step 4: Simplify right side
    156,907.06x = 18,467,471,098.40
  5. Step 5: Solve for x
    x = 18,467,471,098.40/156,907.06
  6. Step 6: Final answer
    x = 117,696.88

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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.