Home / 152,129.09-209,937.20-84,144.84

Finding the Fourth Proportional to 152,129.09, 209,937.20 and 84,144.84

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Solution

The fourth proportional to 152,129.09, 209,937.20 and 84,144.84 is: 116,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,129.09 : 209,937.20 = 84,144.84 : x
  2. Step 2: Convert to fraction form
    152,129.09/209,937.20 = 84,144.84/x
  3. Step 3: Cross multiply
    152,129.09x = 209,937.20 × 84,144.84
  4. Step 4: Simplify right side
    152,129.09x = 17,665,131,683.32
  5. Step 5: Solve for x
    x = 17,665,131,683.32/152,129.09
  6. Step 6: Final answer
    x = 116,119.36

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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.