Home / 121,935.96-168,328.09-70,930.10

Finding the Fourth Proportional to 121,935.96, 168,328.09 and 70,930.10

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Solution

The fourth proportional to 121,935.96, 168,328.09 and 70,930.10 is: 97,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,935.96 : 168,328.09 = 70,930.10 : x
  2. Step 2: Convert to fraction form
    121,935.96/168,328.09 = 70,930.10/x
  3. Step 3: Cross multiply
    121,935.96x = 168,328.09 × 70,930.10
  4. Step 4: Simplify right side
    121,935.96x = 11,939,528,765.99
  5. Step 5: Solve for x
    x = 11,939,528,765.99/121,935.96
  6. Step 6: Final answer
    x = 97,916.39

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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.