Home / 154,424.27-213,095.61-86,429.81

Finding the Fourth Proportional to 154,424.27, 213,095.61 and 86,429.81

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Solution

The fourth proportional to 154,424.27, 213,095.61 and 86,429.81 is: 119,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,424.27 : 213,095.61 = 86,429.81 : x
  2. Step 2: Convert to fraction form
    154,424.27/213,095.61 = 86,429.81/x
  3. Step 3: Cross multiply
    154,424.27x = 213,095.61 × 86,429.81
  4. Step 4: Simplify right side
    154,424.27x = 18,417,813,084.13
  5. Step 5: Solve for x
    x = 18,417,813,084.13/154,424.27
  6. Step 6: Final answer
    x = 119,267.61

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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.