Home / 152,781.48-210,863.79-89,119.35

Finding the Fourth Proportional to 152,781.48, 210,863.79 and 89,119.35

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Solution

The fourth proportional to 152,781.48, 210,863.79 and 89,119.35 is: 122,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,781.48 : 210,863.79 = 89,119.35 : x
  2. Step 2: Convert to fraction form
    152,781.48/210,863.79 = 89,119.35/x
  3. Step 3: Cross multiply
    152,781.48x = 210,863.79 × 89,119.35
  4. Step 4: Simplify right side
    152,781.48x = 18,792,043,903.34
  5. Step 5: Solve for x
    x = 18,792,043,903.34/152,781.48
  6. Step 6: Final answer
    x = 122,999.49

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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.