Home / 111,639.81-154,063.68-60,652.53

Finding the Fourth Proportional to 111,639.81, 154,063.68 and 60,652.53

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Solution

The fourth proportional to 111,639.81, 154,063.68 and 60,652.53 is: 83,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,639.81 : 154,063.68 = 60,652.53 : x
  2. Step 2: Convert to fraction form
    111,639.81/154,063.68 = 60,652.53/x
  3. Step 3: Cross multiply
    111,639.81x = 154,063.68 × 60,652.53
  4. Step 4: Simplify right side
    111,639.81x = 9,344,351,916.25
  5. Step 5: Solve for x
    x = 9,344,351,916.25/111,639.81
  6. Step 6: Final answer
    x = 83,700.89

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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.