Home / 105,015.24-157,475.47-30,118.19

Finding the Fourth Proportional to 105,015.24, 157,475.47 and 30,118.19

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Solution

The fourth proportional to 105,015.24, 157,475.47 and 30,118.19 is: 45,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,015.24 : 157,475.47 = 30,118.19 : x
  2. Step 2: Convert to fraction form
    105,015.24/157,475.47 = 30,118.19/x
  3. Step 3: Cross multiply
    105,015.24x = 157,475.47 × 30,118.19
  4. Step 4: Simplify right side
    105,015.24x = 4,742,876,125.80
  5. Step 5: Solve for x
    x = 4,742,876,125.80/105,015.24
  6. Step 6: Final answer
    x = 45,163.69

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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.