Home / 121,939.12-182,918.94-47,056.24

Finding the Fourth Proportional to 121,939.12, 182,918.94 and 47,056.24

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Solution

The fourth proportional to 121,939.12, 182,918.94 and 47,056.24 is: 70,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,939.12 : 182,918.94 = 47,056.24 : x
  2. Step 2: Convert to fraction form
    121,939.12/182,918.94 = 47,056.24/x
  3. Step 3: Cross multiply
    121,939.12x = 182,918.94 × 47,056.24
  4. Step 4: Simplify right side
    121,939.12x = 8,607,477,541.19
  5. Step 5: Solve for x
    x = 8,607,477,541.19/121,939.12
  6. Step 6: Final answer
    x = 70,588.32

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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.