Home / 152,781.40-210,863.70-89,119.24

Finding the Fourth Proportional to 152,781.40, 210,863.70 and 89,119.24

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Solution

The fourth proportional to 152,781.40, 210,863.70 and 89,119.24 is: 122,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,781.40 : 210,863.70 = 89,119.24 : x
  2. Step 2: Convert to fraction form
    152,781.40/210,863.70 = 89,119.24/x
  3. Step 3: Cross multiply
    152,781.40x = 210,863.70 × 89,119.24
  4. Step 4: Simplify right side
    152,781.40x = 18,792,012,687.59
  5. Step 5: Solve for x
    x = 18,792,012,687.59/152,781.40
  6. Step 6: Final answer
    x = 122,999.35

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1.5x scale

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.