Home / 105,440.15-158,142.60-46,259.93

Finding the Fourth Proportional to 105,440.15, 158,142.60 and 46,259.93

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Solution

The fourth proportional to 105,440.15, 158,142.60 and 46,259.93 is: 69,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,440.15 : 158,142.60 = 46,259.93 : x
  2. Step 2: Convert to fraction form
    105,440.15/158,142.60 = 46,259.93/x
  3. Step 3: Cross multiply
    105,440.15x = 158,142.60 × 46,259.93
  4. Step 4: Simplify right side
    105,440.15x = 7,315,664,815.31
  5. Step 5: Solve for x
    x = 7,315,664,815.31/105,440.15
  6. Step 6: Final answer
    x = 69,382.16

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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.