Home / 210,541.95-315,814.29-84,192.84

Finding the Fourth Proportional to 210,541.95, 315,814.29 and 84,192.84

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Solution

The fourth proportional to 210,541.95, 315,814.29 and 84,192.84 is: 126,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,541.95 : 315,814.29 = 84,192.84 : x
  2. Step 2: Convert to fraction form
    210,541.95/315,814.29 = 84,192.84/x
  3. Step 3: Cross multiply
    210,541.95x = 315,814.29 × 84,192.84
  4. Step 4: Simplify right side
    210,541.95x = 26,589,301,987.68
  5. Step 5: Solve for x
    x = 26,589,301,987.68/210,541.95
  6. Step 6: Final answer
    x = 126,289.81

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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.