Home / 115,926.34-159,970.26-64,930.36

Finding the Fourth Proportional to 115,926.34, 159,970.26 and 64,930.36

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Solution

The fourth proportional to 115,926.34, 159,970.26 and 64,930.36 is: 89,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,926.34 : 159,970.26 = 64,930.36 : x
  2. Step 2: Convert to fraction form
    115,926.34/159,970.26 = 64,930.36/x
  3. Step 3: Cross multiply
    115,926.34x = 159,970.26 × 64,930.36
  4. Step 4: Simplify right side
    115,926.34x = 10,386,926,571.09
  5. Step 5: Solve for x
    x = 10,386,926,571.09/115,926.34
  6. Step 6: Final answer
    x = 89,599.37

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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.