Home / 105,118.40-157,698.38-38,559.15

Finding the Fourth Proportional to 105,118.40, 157,698.38 and 38,559.15

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Solution

The fourth proportional to 105,118.40, 157,698.38 and 38,559.15 is: 57,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,118.40 : 157,698.38 = 38,559.15 : x
  2. Step 2: Convert to fraction form
    105,118.40/157,698.38 = 38,559.15/x
  3. Step 3: Cross multiply
    105,118.40x = 157,698.38 × 38,559.15
  4. Step 4: Simplify right side
    105,118.40x = 6,080,715,296.38
  5. Step 5: Solve for x
    x = 6,080,715,296.38/105,118.40
  6. Step 6: Final answer
    x = 57,846.34

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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.