Home / 130,929.38-180,682.55-71,313.38

Finding the Fourth Proportional to 130,929.38, 180,682.55 and 71,313.38

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Solution

The fourth proportional to 130,929.38, 180,682.55 and 71,313.38 is: 98,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,929.38 : 180,682.55 = 71,313.38 : x
  2. Step 2: Convert to fraction form
    130,929.38/180,682.55 = 71,313.38/x
  3. Step 3: Cross multiply
    130,929.38x = 180,682.55 × 71,313.38
  4. Step 4: Simplify right side
    130,929.38x = 12,885,082,087.54
  5. Step 5: Solve for x
    x = 12,885,082,087.54/130,929.38
  6. Step 6: Final answer
    x = 98,412.46

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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.