Home / 105,111.04-157,715.77-45,939.03

Finding the Fourth Proportional to 105,111.04, 157,715.77 and 45,939.03

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Solution

The fourth proportional to 105,111.04, 157,715.77 and 45,939.03 is: 68,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,111.04 : 157,715.77 = 45,939.03 : x
  2. Step 2: Convert to fraction form
    105,111.04/157,715.77 = 45,939.03/x
  3. Step 3: Cross multiply
    105,111.04x = 157,715.77 × 45,939.03
  4. Step 4: Simplify right side
    105,111.04x = 7,245,309,489.50
  5. Step 5: Solve for x
    x = 7,245,309,489.50/105,111.04
  6. Step 6: Final answer
    x = 68,930.05

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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.