Home / 121,962.16-182,838.09-47,134.81

Finding the Fourth Proportional to 121,962.16, 182,838.09 and 47,134.81

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Solution

The fourth proportional to 121,962.16, 182,838.09 and 47,134.81 is: 70,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,962.16 : 182,838.09 = 47,134.81 : x
  2. Step 2: Convert to fraction form
    121,962.16/182,838.09 = 47,134.81/x
  3. Step 3: Cross multiply
    121,962.16x = 182,838.09 × 47,134.81
  4. Step 4: Simplify right side
    121,962.16x = 8,618,037,718.72
  5. Step 5: Solve for x
    x = 8,618,037,718.72/121,962.16
  6. Step 6: Final answer
    x = 70,661.57

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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.