Home / 207,812.89-286,776.03-117,168.05

Finding the Fourth Proportional to 207,812.89, 286,776.03 and 117,168.05

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Solution

The fourth proportional to 207,812.89, 286,776.03 and 117,168.05 is: 161,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,812.89 : 286,776.03 = 117,168.05 : x
  2. Step 2: Convert to fraction form
    207,812.89/286,776.03 = 117,168.05/x
  3. Step 3: Cross multiply
    207,812.89x = 286,776.03 × 117,168.05
  4. Step 4: Simplify right side
    207,812.89x = 33,600,988,302.75
  5. Step 5: Solve for x
    x = 33,600,988,302.75/207,812.89
  6. Step 6: Final answer
    x = 161,688.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.