Home / 209,050.74-313,576.08-90,719.46

Finding the Fourth Proportional to 209,050.74, 313,576.08 and 90,719.46

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Solution

The fourth proportional to 209,050.74, 313,576.08 and 90,719.46 is: 136,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,050.74 : 313,576.08 = 90,719.46 : x
  2. Step 2: Convert to fraction form
    209,050.74/313,576.08 = 90,719.46/x
  3. Step 3: Cross multiply
    209,050.74x = 313,576.08 × 90,719.46
  4. Step 4: Simplify right side
    209,050.74x = 28,447,452,646.52
  5. Step 5: Solve for x
    x = 28,447,452,646.52/209,050.74
  6. Step 6: Final answer
    x = 136,079.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.