Home / 122,109.40-183,216.78-65,938.32

Finding the Fourth Proportional to 122,109.40, 183,216.78 and 65,938.32

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Solution

The fourth proportional to 122,109.40, 183,216.78 and 65,938.32 is: 98,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,109.40 : 183,216.78 = 65,938.32 : x
  2. Step 2: Convert to fraction form
    122,109.40/183,216.78 = 65,938.32/x
  3. Step 3: Cross multiply
    122,109.40x = 183,216.78 × 65,938.32
  4. Step 4: Simplify right side
    122,109.40x = 12,081,006,669.01
  5. Step 5: Solve for x
    x = 12,081,006,669.01/122,109.40
  6. Step 6: Final answer
    x = 98,935.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.