Home / 154,946.18-213,816.74-86,956.80

Finding the Fourth Proportional to 154,946.18, 213,816.74 and 86,956.80

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Solution

The fourth proportional to 154,946.18, 213,816.74 and 86,956.80 is: 119,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,946.18 : 213,816.74 = 86,956.80 : x
  2. Step 2: Convert to fraction form
    154,946.18/213,816.74 = 86,956.80/x
  3. Step 3: Cross multiply
    154,946.18x = 213,816.74 × 86,956.80
  4. Step 4: Simplify right side
    154,946.18x = 18,592,819,496.83
  5. Step 5: Solve for x
    x = 18,592,819,496.83/154,946.18
  6. Step 6: Final answer
    x = 119,995.34

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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.