Home / 154,823.02-213,664.22-86,861.52

Finding the Fourth Proportional to 154,823.02, 213,664.22 and 86,861.52

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Solution

The fourth proportional to 154,823.02, 213,664.22 and 86,861.52 is: 119,873.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,823.02 : 213,664.22 = 86,861.52 : x
  2. Step 2: Convert to fraction form
    154,823.02/213,664.22 = 86,861.52/x
  3. Step 3: Cross multiply
    154,823.02x = 213,664.22 × 86,861.52
  4. Step 4: Simplify right side
    154,823.02x = 18,559,198,918.81
  5. Step 5: Solve for x
    x = 18,559,198,918.81/154,823.02
  6. Step 6: Final answer
    x = 119,873.64

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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.