Home / 230,716.36-318,378.74-130,123.72

Finding the Fourth Proportional to 230,716.36, 318,378.74 and 130,123.72

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Solution

The fourth proportional to 230,716.36, 318,378.74 and 130,123.72 is: 179,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,716.36 : 318,378.74 = 130,123.72 : x
  2. Step 2: Convert to fraction form
    230,716.36/318,378.74 = 130,123.72/x
  3. Step 3: Cross multiply
    230,716.36x = 318,378.74 × 130,123.72
  4. Step 4: Simplify right side
    230,716.36x = 41,428,626,017.71
  5. Step 5: Solve for x
    x = 41,428,626,017.71/230,716.36
  6. Step 6: Final answer
    x = 179,565.19

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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.