Home / 122,568.16-183,852.72-81,005.92

Finding the Fourth Proportional to 122,568.16, 183,852.72 and 81,005.92

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Solution

The fourth proportional to 122,568.16, 183,852.72 and 81,005.92 is: 121,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,568.16 : 183,852.72 = 81,005.92 : x
  2. Step 2: Convert to fraction form
    122,568.16/183,852.72 = 81,005.92/x
  3. Step 3: Cross multiply
    122,568.16x = 183,852.72 × 81,005.92
  4. Step 4: Simplify right side
    122,568.16x = 14,893,158,728.10
  5. Step 5: Solve for x
    x = 14,893,158,728.10/122,568.16
  6. Step 6: Final answer
    x = 121,509.20

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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.