Home / 158,328.48-218,481.93-86,696.94

Finding the Fourth Proportional to 158,328.48, 218,481.93 and 86,696.94

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Solution

The fourth proportional to 158,328.48, 218,481.93 and 86,696.94 is: 119,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,328.48 : 218,481.93 = 86,696.94 : x
  2. Step 2: Convert to fraction form
    158,328.48/218,481.93 = 86,696.94/x
  3. Step 3: Cross multiply
    158,328.48x = 218,481.93 × 86,696.94
  4. Step 4: Simplify right side
    158,328.48x = 18,941,714,776.29
  5. Step 5: Solve for x
    x = 18,941,714,776.29/158,328.48
  6. Step 6: Final answer
    x = 119,635.55

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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.