Home / 154,150.70-212,726.35-90,476.20

Finding the Fourth Proportional to 154,150.70, 212,726.35 and 90,476.20

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Solution

The fourth proportional to 154,150.70, 212,726.35 and 90,476.20 is: 124,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,150.70 : 212,726.35 = 90,476.20 : x
  2. Step 2: Convert to fraction form
    154,150.70/212,726.35 = 90,476.20/x
  3. Step 3: Cross multiply
    154,150.70x = 212,726.35 × 90,476.20
  4. Step 4: Simplify right side
    154,150.70x = 19,246,671,787.87
  5. Step 5: Solve for x
    x = 19,246,671,787.87/154,150.70
  6. Step 6: Final answer
    x = 124,856.21

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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.