Home / 105,508.19-145,600.60-57,762.34

Finding the Fourth Proportional to 105,508.19, 145,600.60 and 57,762.34

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Solution

The fourth proportional to 105,508.19, 145,600.60 and 57,762.34 is: 79,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,508.19 : 145,600.60 = 57,762.34 : x
  2. Step 2: Convert to fraction form
    105,508.19/145,600.60 = 57,762.34/x
  3. Step 3: Cross multiply
    105,508.19x = 145,600.60 × 57,762.34
  4. Step 4: Simplify right side
    105,508.19x = 8,410,231,361.40
  5. Step 5: Solve for x
    x = 8,410,231,361.40/105,508.19
  6. Step 6: Final answer
    x = 79,711.64

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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.