Home / 106,816.36-160,084.40-78,604.32

Finding the Fourth Proportional to 106,816.36, 160,084.40 and 78,604.32

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Solution

The fourth proportional to 106,816.36, 160,084.40 and 78,604.32 is: 117,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,816.36 : 160,084.40 = 78,604.32 : x
  2. Step 2: Convert to fraction form
    106,816.36/160,084.40 = 78,604.32/x
  3. Step 3: Cross multiply
    106,816.36x = 160,084.40 × 78,604.32
  4. Step 4: Simplify right side
    106,816.36x = 12,583,325,404.61
  5. Step 5: Solve for x
    x = 12,583,325,404.61/106,816.36
  6. Step 6: Final answer
    x = 117,803.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.