Home / 142,684,403.58-196,905,484.71-77,494,307.58

Finding the Fourth Proportional to 142,684,403.58, 196,905,484.71 and 77,494,307.58

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Solution

The fourth proportional to 142,684,403.58, 196,905,484.71 and 77,494,307.58 is: 106,942,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,403.58 : 196,905,484.71 = 77,494,307.58 : x
  2. Step 2: Convert to fraction form
    142,684,403.58/196,905,484.71 = 77,494,307.58/x
  3. Step 3: Cross multiply
    142,684,403.58x = 196,905,484.71 × 77,494,307.58
  4. Step 4: Simplify right side
    142,684,403.58x = 15,259,054,196,305,728
  5. Step 5: Solve for x
    x = 15,259,054,196,305,728/142,684,403.58
  6. Step 6: Final answer
    x = 106,942,691.80

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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.