Home / 145,148.30-217,784.19-70,324.20

Finding the Fourth Proportional to 145,148.30, 217,784.19 and 70,324.20

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Solution

The fourth proportional to 145,148.30, 217,784.19 and 70,324.20 is: 105,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,148.30 : 217,784.19 = 70,324.20 : x
  2. Step 2: Convert to fraction form
    145,148.30/217,784.19 = 70,324.20/x
  3. Step 3: Cross multiply
    145,148.30x = 217,784.19 × 70,324.20
  4. Step 4: Simplify right side
    145,148.30x = 15,315,499,198.11
  5. Step 5: Solve for x
    x = 15,315,499,198.11/145,148.30
  6. Step 6: Final answer
    x = 105,516.21

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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.