Home / 106,931.72-147,581.93-61,616.41

Finding the Fourth Proportional to 106,931.72, 147,581.93 and 61,616.41

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Solution

The fourth proportional to 106,931.72, 147,581.93 and 61,616.41 is: 85,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.72 : 147,581.93 = 61,616.41 : x
  2. Step 2: Convert to fraction form
    106,931.72/147,581.93 = 61,616.41/x
  3. Step 3: Cross multiply
    106,931.72x = 147,581.93 × 61,616.41
  4. Step 4: Simplify right side
    106,931.72x = 9,093,468,707.47
  5. Step 5: Solve for x
    x = 9,093,468,707.47/106,931.72
  6. Step 6: Final answer
    x = 85,039.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.