Home / 154,151.85-212,727.90-90,477.34

Finding the Fourth Proportional to 154,151.85, 212,727.90 and 90,477.34

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Solution

The fourth proportional to 154,151.85, 212,727.90 and 90,477.34 is: 124,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,151.85 : 212,727.90 = 90,477.34 : x
  2. Step 2: Convert to fraction form
    154,151.85/212,727.90 = 90,477.34/x
  3. Step 3: Cross multiply
    154,151.85x = 212,727.90 × 90,477.34
  4. Step 4: Simplify right side
    154,151.85x = 19,247,054,535.79
  5. Step 5: Solve for x
    x = 19,247,054,535.79/154,151.85
  6. Step 6: Final answer
    x = 124,857.76

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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.