Home / 210,665.16-315,998.06-84,362.28

Finding the Fourth Proportional to 210,665.16, 315,998.06 and 84,362.28

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Solution

The fourth proportional to 210,665.16, 315,998.06 and 84,362.28 is: 126,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,665.16 : 315,998.06 = 84,362.28 : x
  2. Step 2: Convert to fraction form
    210,665.16/315,998.06 = 84,362.28/x
  3. Step 3: Cross multiply
    210,665.16x = 315,998.06 × 84,362.28
  4. Step 4: Simplify right side
    210,665.16x = 26,658,316,817.18
  5. Step 5: Solve for x
    x = 26,658,316,817.18/210,665.16
  6. Step 6: Final answer
    x = 126,543.55

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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.