Home / 154,869.36-213,840.12-119,002.80

Finding the Fourth Proportional to 154,869.36, 213,840.12 and 119,002.80

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Solution

The fourth proportional to 154,869.36, 213,840.12 and 119,002.80 is: 164,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,869.36 : 213,840.12 = 119,002.80 : x
  2. Step 2: Convert to fraction form
    154,869.36/213,840.12 = 119,002.80/x
  3. Step 3: Cross multiply
    154,869.36x = 213,840.12 × 119,002.80
  4. Step 4: Simplify right side
    154,869.36x = 25,447,573,032.34
  5. Step 5: Solve for x
    x = 25,447,573,032.34/154,869.36
  6. Step 6: Final answer
    x = 164,316.38

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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.