Home / 210,128.69-315,195.18-60,368.60

Finding the Fourth Proportional to 210,128.69, 315,195.18 and 60,368.60

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Solution

The fourth proportional to 210,128.69, 315,195.18 and 60,368.60 is: 90,553.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,128.69 : 315,195.18 = 60,368.60 : x
  2. Step 2: Convert to fraction form
    210,128.69/315,195.18 = 60,368.60/x
  3. Step 3: Cross multiply
    210,128.69x = 315,195.18 × 60,368.60
  4. Step 4: Simplify right side
    210,128.69x = 19,027,891,743.35
  5. Step 5: Solve for x
    x = 19,027,891,743.35/210,128.69
  6. Step 6: Final answer
    x = 90,553.52

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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.