Home / 112,416.84-155,130.48-61,428.36

Finding the Fourth Proportional to 112,416.84, 155,130.48 and 61,428.36

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Solution

The fourth proportional to 112,416.84, 155,130.48 and 61,428.36 is: 84,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,416.84 : 155,130.48 = 61,428.36 : x
  2. Step 2: Convert to fraction form
    112,416.84/155,130.48 = 61,428.36/x
  3. Step 3: Cross multiply
    112,416.84x = 155,130.48 × 61,428.36
  4. Step 4: Simplify right side
    112,416.84x = 9,529,410,972.41
  5. Step 5: Solve for x
    x = 9,529,410,972.41/112,416.84
  6. Step 6: Final answer
    x = 84,768.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.