Home / 157,829.14-217,803.96-86,209.16

Finding the Fourth Proportional to 157,829.14, 217,803.96 and 86,209.16

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Solution

The fourth proportional to 157,829.14, 217,803.96 and 86,209.16 is: 118,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,829.14 : 217,803.96 = 86,209.16 : x
  2. Step 2: Convert to fraction form
    157,829.14/217,803.96 = 86,209.16/x
  3. Step 3: Cross multiply
    157,829.14x = 217,803.96 × 86,209.16
  4. Step 4: Simplify right side
    157,829.14x = 18,776,696,436.27
  5. Step 5: Solve for x
    x = 18,776,696,436.27/157,829.14
  6. Step 6: Final answer
    x = 118,968.50

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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.