Home / 105,651.36-157,376.16-100,041.60

Finding the Fourth Proportional to 105,651.36, 157,376.16 and 100,041.60

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Solution

The fourth proportional to 105,651.36, 157,376.16 and 100,041.60 is: 149,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.36 : 157,376.16 = 100,041.60 : x
  2. Step 2: Convert to fraction form
    105,651.36/157,376.16 = 100,041.60/x
  3. Step 3: Cross multiply
    105,651.36x = 157,376.16 × 100,041.60
  4. Step 4: Simplify right side
    105,651.36x = 15,744,162,848.26
  5. Step 5: Solve for x
    x = 15,744,162,848.26/105,651.36
  6. Step 6: Final answer
    x = 149,019.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.