Home / 209,977.06-314,742.79-103,210.45

Finding the Fourth Proportional to 209,977.06, 314,742.79 and 103,210.45

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Solution

The fourth proportional to 209,977.06, 314,742.79 and 103,210.45 is: 154,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,977.06 : 314,742.79 = 103,210.45 : x
  2. Step 2: Convert to fraction form
    209,977.06/314,742.79 = 103,210.45/x
  3. Step 3: Cross multiply
    209,977.06x = 314,742.79 × 103,210.45
  4. Step 4: Simplify right side
    209,977.06x = 32,484,745,812.46
  5. Step 5: Solve for x
    x = 32,484,745,812.46/209,977.06
  6. Step 6: Final answer
    x = 154,706.17

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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.