Home / 105,437.98-157,982-74,207.62

Finding the Fourth Proportional to 105,437.98, 157,982 and 74,207.62

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Solution

The fourth proportional to 105,437.98, 157,982 and 74,207.62 is: 111,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,437.98 : 157,982 = 74,207.62 : x
  2. Step 2: Convert to fraction form
    105,437.98/157,982 = 74,207.62/x
  3. Step 3: Cross multiply
    105,437.98x = 157,982 × 74,207.62
  4. Step 4: Simplify right side
    105,437.98x = 11,723,468,222.84
  5. Step 5: Solve for x
    x = 11,723,468,222.84/105,437.98
  6. Step 6: Final answer
    x = 111,188.29

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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.