Home / 154,951.22-213,903.51-119,128.70

Finding the Fourth Proportional to 154,951.22, 213,903.51 and 119,128.70

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Solution

The fourth proportional to 154,951.22, 213,903.51 and 119,128.70 is: 164,452.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,951.22 : 213,903.51 = 119,128.70 : x
  2. Step 2: Convert to fraction form
    154,951.22/213,903.51 = 119,128.70/x
  3. Step 3: Cross multiply
    154,951.22x = 213,903.51 × 119,128.70
  4. Step 4: Simplify right side
    154,951.22x = 25,482,047,071.74
  5. Step 5: Solve for x
    x = 25,482,047,071.74/154,951.22
  6. Step 6: Final answer
    x = 164,452.06

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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.