Home / 154,127.91-212,697.99-90,466.77

Finding the Fourth Proportional to 154,127.91, 212,697.99 and 90,466.77

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Solution

The fourth proportional to 154,127.91, 212,697.99 and 90,466.77 is: 124,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,127.91 : 212,697.99 = 90,466.77 : x
  2. Step 2: Convert to fraction form
    154,127.91/212,697.99 = 90,466.77/x
  3. Step 3: Cross multiply
    154,127.91x = 212,697.99 × 90,466.77
  4. Step 4: Simplify right side
    154,127.91x = 19,242,100,140.79
  5. Step 5: Solve for x
    x = 19,242,100,140.79/154,127.91
  6. Step 6: Final answer
    x = 124,845.01

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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.