Home / 154,215.21-231,312.54-53,003.58

Finding the Fourth Proportional to 154,215.21, 231,312.54 and 53,003.58

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Solution

The fourth proportional to 154,215.21, 231,312.54 and 53,003.58 is: 79,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,215.21 : 231,312.54 = 53,003.58 : x
  2. Step 2: Convert to fraction form
    154,215.21/231,312.54 = 53,003.58/x
  3. Step 3: Cross multiply
    154,215.21x = 231,312.54 × 53,003.58
  4. Step 4: Simplify right side
    154,215.21x = 12,260,392,718.89
  5. Step 5: Solve for x
    x = 12,260,392,718.89/154,215.21
  6. Step 6: Final answer
    x = 79,501.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.