Home / 115,185.80-158,956.26-64,885.16

Finding the Fourth Proportional to 115,185.80, 158,956.26 and 64,885.16

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Solution

The fourth proportional to 115,185.80, 158,956.26 and 64,885.16 is: 89,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,185.80 : 158,956.26 = 64,885.16 : x
  2. Step 2: Convert to fraction form
    115,185.80/158,956.26 = 64,885.16/x
  3. Step 3: Cross multiply
    115,185.80x = 158,956.26 × 64,885.16
  4. Step 4: Simplify right side
    115,185.80x = 10,313,902,363.10
  5. Step 5: Solve for x
    x = 10,313,902,363.10/115,185.80
  6. Step 6: Final answer
    x = 89,541.44

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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.