Home / 152,705.42-210,726.37-84,721.67

Finding the Fourth Proportional to 152,705.42, 210,726.37 and 84,721.67

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Solution

The fourth proportional to 152,705.42, 210,726.37 and 84,721.67 is: 116,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,705.42 : 210,726.37 = 84,721.67 : x
  2. Step 2: Convert to fraction form
    152,705.42/210,726.37 = 84,721.67/x
  3. Step 3: Cross multiply
    152,705.42x = 210,726.37 × 84,721.67
  4. Step 4: Simplify right side
    152,705.42x = 17,853,089,979.44
  5. Step 5: Solve for x
    x = 17,853,089,979.44/152,705.42
  6. Step 6: Final answer
    x = 116,911.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.