Home / 154,156.23-212,702.36-90,477.27

Finding the Fourth Proportional to 154,156.23, 212,702.36 and 90,477.27

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Solution

The fourth proportional to 154,156.23, 212,702.36 and 90,477.27 is: 124,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,156.23 : 212,702.36 = 90,477.27 : x
  2. Step 2: Convert to fraction form
    154,156.23/212,702.36 = 90,477.27/x
  3. Step 3: Cross multiply
    154,156.23x = 212,702.36 × 90,477.27
  4. Step 4: Simplify right side
    154,156.23x = 19,244,728,402.97
  5. Step 5: Solve for x
    x = 19,244,728,402.97/154,156.23
  6. Step 6: Final answer
    x = 124,839.12

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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.