Home / 180,235.72-248,723.94-100,747.72

Finding the Fourth Proportional to 180,235.72, 248,723.94 and 100,747.72

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Solution

The fourth proportional to 180,235.72, 248,723.94 and 100,747.72 is: 139,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,235.72 : 248,723.94 = 100,747.72 : x
  2. Step 2: Convert to fraction form
    180,235.72/248,723.94 = 100,747.72/x
  3. Step 3: Cross multiply
    180,235.72x = 248,723.94 × 100,747.72
  4. Step 4: Simplify right side
    180,235.72x = 25,058,369,864.42
  5. Step 5: Solve for x
    x = 25,058,369,864.42/180,235.72
  6. Step 6: Final answer
    x = 139,031.10

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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.