Home / 105,118.56-157,685.60-30,235.68

Finding the Fourth Proportional to 105,118.56, 157,685.60 and 30,235.68

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Solution

The fourth proportional to 105,118.56, 157,685.60 and 30,235.68 is: 45,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,118.56 : 157,685.60 = 30,235.68 : x
  2. Step 2: Convert to fraction form
    105,118.56/157,685.60 = 30,235.68/x
  3. Step 3: Cross multiply
    105,118.56x = 157,685.60 × 30,235.68
  4. Step 4: Simplify right side
    105,118.56x = 4,767,731,342.21
  5. Step 5: Solve for x
    x = 4,767,731,342.21/105,118.56
  6. Step 6: Final answer
    x = 45,355.75

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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.