Home / 154,059.48-212,603.49-90,398.34

Finding the Fourth Proportional to 154,059.48, 212,603.49 and 90,398.34

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Solution

The fourth proportional to 154,059.48, 212,603.49 and 90,398.34 is: 124,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,059.48 : 212,603.49 = 90,398.34 : x
  2. Step 2: Convert to fraction form
    154,059.48/212,603.49 = 90,398.34/x
  3. Step 3: Cross multiply
    154,059.48x = 212,603.49 × 90,398.34
  4. Step 4: Simplify right side
    154,059.48x = 19,219,002,574.21
  5. Step 5: Solve for x
    x = 19,219,002,574.21/154,059.48
  6. Step 6: Final answer
    x = 124,750.54

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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.