Home / 102,931.58-154,450.24-77,963.33

Finding the Fourth Proportional to 102,931.58, 154,450.24 and 77,963.33

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Solution

The fourth proportional to 102,931.58, 154,450.24 and 77,963.33 is: 116,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,931.58 : 154,450.24 = 77,963.33 : x
  2. Step 2: Convert to fraction form
    102,931.58/154,450.24 = 77,963.33/x
  3. Step 3: Cross multiply
    102,931.58x = 154,450.24 × 77,963.33
  4. Step 4: Simplify right side
    102,931.58x = 12,041,455,220.92
  5. Step 5: Solve for x
    x = 12,041,455,220.92/102,931.58
  6. Step 6: Final answer
    x = 116,985.04

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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.