Home / 129,244,143.75-178,332,525.23-77,038,037.12

Finding the Fourth Proportional to 129,244,143.75, 178,332,525.23 and 77,038,037.12

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Solution

The fourth proportional to 129,244,143.75, 178,332,525.23 and 77,038,037.12 is: 106,297,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,244,143.75 : 178,332,525.23 = 77,038,037.12 : x
  2. Step 2: Convert to fraction form
    129,244,143.75/178,332,525.23 = 77,038,037.12/x
  3. Step 3: Cross multiply
    129,244,143.75x = 178,332,525.23 × 77,038,037.12
  4. Step 4: Simplify right side
    129,244,143.75x = 13,738,387,697,095,222
  5. Step 5: Solve for x
    x = 13,738,387,697,095,222/129,244,143.75
  6. Step 6: Final answer
    x = 106,297,951.29

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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.