Home / 130,954.75-180,709.05-77,227.45

Finding the Fourth Proportional to 130,954.75, 180,709.05 and 77,227.45

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Solution

The fourth proportional to 130,954.75, 180,709.05 and 77,227.45 is: 106,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,954.75 : 180,709.05 = 77,227.45 : x
  2. Step 2: Convert to fraction form
    130,954.75/180,709.05 = 77,227.45/x
  3. Step 3: Cross multiply
    130,954.75x = 180,709.05 × 77,227.45
  4. Step 4: Simplify right side
    130,954.75x = 13,955,699,123.42
  5. Step 5: Solve for x
    x = 13,955,699,123.42/130,954.75
  6. Step 6: Final answer
    x = 106,568.87

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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.