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Finding the Fourth Proportional to 80,603.60, 112,937.20 and 80,603.60

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Solution

The fourth proportional to 80,603.60, 112,937.20 and 80,603.60 is: 112,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,603.60 : 112,937.20 = 80,603.60 : x
  2. Step 2: Convert to fraction form
    80,603.60/112,937.20 = 80,603.60/x
  3. Step 3: Cross multiply
    80,603.60x = 112,937.20 × 80,603.60
  4. Step 4: Simplify right side
    80,603.60x = 9,103,144,893.92
  5. Step 5: Solve for x
    x = 9,103,144,893.92/80,603.60
  6. Step 6: Final answer
    x = 112,937.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.