Home / 154,267.30-212,890.44-90,606.16

Finding the Fourth Proportional to 154,267.30, 212,890.44 and 90,606.16

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Solution

The fourth proportional to 154,267.30, 212,890.44 and 90,606.16 is: 125,037.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,267.30 : 212,890.44 = 90,606.16 : x
  2. Step 2: Convert to fraction form
    154,267.30/212,890.44 = 90,606.16/x
  3. Step 3: Cross multiply
    154,267.30x = 212,890.44 × 90,606.16
  4. Step 4: Simplify right side
    154,267.30x = 19,289,185,269.11
  5. Step 5: Solve for x
    x = 19,289,185,269.11/154,267.30
  6. Step 6: Final answer
    x = 125,037.42

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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.