Home / 154,477.29-213,161.04-86,484.81

Finding the Fourth Proportional to 154,477.29, 213,161.04 and 86,484.81

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Solution

The fourth proportional to 154,477.29, 213,161.04 and 86,484.81 is: 119,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,477.29 : 213,161.04 = 86,484.81 : x
  2. Step 2: Convert to fraction form
    154,477.29/213,161.04 = 86,484.81/x
  3. Step 3: Cross multiply
    154,477.29x = 213,161.04 × 86,484.81
  4. Step 4: Simplify right side
    154,477.29x = 18,435,192,043.80
  5. Step 5: Solve for x
    x = 18,435,192,043.80/154,477.29
  6. Step 6: Final answer
    x = 119,339.17

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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.