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Finding the Fourth Proportional to 112,710.16, 155,538.12 and 62,408.08

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Solution

The fourth proportional to 112,710.16, 155,538.12 and 62,408.08 is: 86,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,710.16 : 155,538.12 = 62,408.08 : x
  2. Step 2: Convert to fraction form
    112,710.16/155,538.12 = 62,408.08/x
  3. Step 3: Cross multiply
    112,710.16x = 155,538.12 × 62,408.08
  4. Step 4: Simplify right side
    112,710.16x = 9,706,835,436.01
  5. Step 5: Solve for x
    x = 9,706,835,436.01/112,710.16
  6. Step 6: Final answer
    x = 86,122.10

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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.