Home / 105,263.44-145,263.59-56,865.39

Finding the Fourth Proportional to 105,263.44, 145,263.59 and 56,865.39

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Solution

The fourth proportional to 105,263.44, 145,263.59 and 56,865.39 is: 78,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.44 : 145,263.59 = 56,865.39 : x
  2. Step 2: Convert to fraction form
    105,263.44/145,263.59 = 56,865.39/x
  3. Step 3: Cross multiply
    105,263.44x = 145,263.59 × 56,865.39
  4. Step 4: Simplify right side
    105,263.44x = 8,260,469,687.51
  5. Step 5: Solve for x
    x = 8,260,469,687.51/105,263.44
  6. Step 6: Final answer
    x = 78,474.25

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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.