Home / 210,106.22-315,162.06-69,864.84

Finding the Fourth Proportional to 210,106.22, 315,162.06 and 69,864.84

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Solution

The fourth proportional to 210,106.22, 315,162.06 and 69,864.84 is: 104,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,106.22 : 315,162.06 = 69,864.84 : x
  2. Step 2: Convert to fraction form
    210,106.22/315,162.06 = 69,864.84/x
  3. Step 3: Cross multiply
    210,106.22x = 315,162.06 × 69,864.84
  4. Step 4: Simplify right side
    210,106.22x = 22,018,746,895.97
  5. Step 5: Solve for x
    x = 22,018,746,895.97/210,106.22
  6. Step 6: Final answer
    x = 104,798.17

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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.