Home / 217,364.10-326,143.35-105,000.90

Finding the Fourth Proportional to 217,364.10, 326,143.35 and 105,000.90

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Solution

The fourth proportional to 217,364.10, 326,143.35 and 105,000.90 is: 157,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,364.10 : 326,143.35 = 105,000.90 : x
  2. Step 2: Convert to fraction form
    217,364.10/326,143.35 = 105,000.90/x
  3. Step 3: Cross multiply
    217,364.10x = 326,143.35 × 105,000.90
  4. Step 4: Simplify right side
    217,364.10x = 34,245,345,279.02
  5. Step 5: Solve for x
    x = 34,245,345,279.02/217,364.10
  6. Step 6: Final answer
    x = 157,548.30

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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.