Home / 105,074.12-157,400.62-99,554.96

Finding the Fourth Proportional to 105,074.12, 157,400.62 and 99,554.96

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Solution

The fourth proportional to 105,074.12, 157,400.62 and 99,554.96 is: 149,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,074.12 : 157,400.62 = 99,554.96 : x
  2. Step 2: Convert to fraction form
    105,074.12/157,400.62 = 99,554.96/x
  3. Step 3: Cross multiply
    105,074.12x = 157,400.62 × 99,554.96
  4. Step 4: Simplify right side
    105,074.12x = 15,670,011,392.18
  5. Step 5: Solve for x
    x = 15,670,011,392.18/105,074.12
  6. Step 6: Final answer
    x = 149,132.94

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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.