Home / 142,314,165.93-196,393,716.99-77,124,069.93

Finding the Fourth Proportional to 142,314,165.93, 196,393,716.99 and 77,124,069.93

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Solution

The fourth proportional to 142,314,165.93, 196,393,716.99 and 77,124,069.93 is: 106,431,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,314,165.93 : 196,393,716.99 = 77,124,069.93 : x
  2. Step 2: Convert to fraction form
    142,314,165.93/196,393,716.99 = 77,124,069.93/x
  3. Step 3: Cross multiply
    142,314,165.93x = 196,393,716.99 × 77,124,069.93
  4. Step 4: Simplify right side
    142,314,165.93x = 15,146,682,762,563,772
  5. Step 5: Solve for x
    x = 15,146,682,762,563,772/142,314,165.93
  6. Step 6: Final answer
    x = 106,431,307.55

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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.