Home / 105,704.08-145,870.54-57,957.35

Finding the Fourth Proportional to 105,704.08, 145,870.54 and 57,957.35

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Solution

The fourth proportional to 105,704.08, 145,870.54 and 57,957.35 is: 79,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,704.08 : 145,870.54 = 57,957.35 : x
  2. Step 2: Convert to fraction form
    105,704.08/145,870.54 = 57,957.35/x
  3. Step 3: Cross multiply
    105,704.08x = 145,870.54 × 57,957.35
  4. Step 4: Simplify right side
    105,704.08x = 8,454,269,067.22
  5. Step 5: Solve for x
    x = 8,454,269,067.22/105,704.08
  6. Step 6: Final answer
    x = 79,980.54

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1.5x scale

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.