Home / 154,529.78-213,226.74-90,009.64

Finding the Fourth Proportional to 154,529.78, 213,226.74 and 90,009.64

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Solution

The fourth proportional to 154,529.78, 213,226.74 and 90,009.64 is: 124,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,529.78 : 213,226.74 = 90,009.64 : x
  2. Step 2: Convert to fraction form
    154,529.78/213,226.74 = 90,009.64/x
  3. Step 3: Cross multiply
    154,529.78x = 213,226.74 × 90,009.64
  4. Step 4: Simplify right side
    154,529.78x = 19,192,461,572.71
  5. Step 5: Solve for x
    x = 19,192,461,572.71/154,529.78
  6. Step 6: Final answer
    x = 124,199.11

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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.