Home / 154,683.36-213,387.12-100,943.52

Finding the Fourth Proportional to 154,683.36, 213,387.12 and 100,943.52

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Solution

The fourth proportional to 154,683.36, 213,387.12 and 100,943.52 is: 139,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,683.36 : 213,387.12 = 100,943.52 : x
  2. Step 2: Convert to fraction form
    154,683.36/213,387.12 = 100,943.52/x
  3. Step 3: Cross multiply
    154,683.36x = 213,387.12 × 100,943.52
  4. Step 4: Simplify right side
    154,683.36x = 21,540,047,015.46
  5. Step 5: Solve for x
    x = 21,540,047,015.46/154,683.36
  6. Step 6: Final answer
    x = 139,252.52

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1.5x scale

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.