Home / 154,301.04-212,933.52-90,644.64

Finding the Fourth Proportional to 154,301.04, 212,933.52 and 90,644.64

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Solution

The fourth proportional to 154,301.04, 212,933.52 and 90,644.64 is: 125,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,301.04 : 212,933.52 = 90,644.64 : x
  2. Step 2: Convert to fraction form
    154,301.04/212,933.52 = 90,644.64/x
  3. Step 3: Cross multiply
    154,301.04x = 212,933.52 × 90,644.64
  4. Step 4: Simplify right side
    154,301.04x = 19,301,282,264.33
  5. Step 5: Solve for x
    x = 19,301,282,264.33/154,301.04
  6. Step 6: Final answer
    x = 125,088.48

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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.