Home / 210,738.80-315,666.60-98,514.80

Finding the Fourth Proportional to 210,738.80, 315,666.60 and 98,514.80

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Solution

The fourth proportional to 210,738.80, 315,666.60 and 98,514.80 is: 147,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,738.80 : 315,666.60 = 98,514.80 : x
  2. Step 2: Convert to fraction form
    210,738.80/315,666.60 = 98,514.80/x
  3. Step 3: Cross multiply
    210,738.80x = 315,666.60 × 98,514.80
  4. Step 4: Simplify right side
    210,738.80x = 31,097,831,965.68
  5. Step 5: Solve for x
    x = 31,097,831,965.68/210,738.80
  6. Step 6: Final answer
    x = 147,565.76

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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.