Home / 210,142.08-315,214.20-52,370.52

Finding the Fourth Proportional to 210,142.08, 315,214.20 and 52,370.52

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Solution

The fourth proportional to 210,142.08, 315,214.20 and 52,370.52 is: 78,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,142.08 : 315,214.20 = 52,370.52 : x
  2. Step 2: Convert to fraction form
    210,142.08/315,214.20 = 52,370.52/x
  3. Step 3: Cross multiply
    210,142.08x = 315,214.20 × 52,370.52
  4. Step 4: Simplify right side
    210,142.08x = 16,507,931,565.38
  5. Step 5: Solve for x
    x = 16,507,931,565.38/210,142.08
  6. Step 6: Final answer
    x = 78,556.05

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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.