Home / 111,841-154,341.66-61,541.08

Finding the Fourth Proportional to 111,841, 154,341.66 and 61,541.08

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Solution

The fourth proportional to 111,841, 154,341.66 and 61,541.08 is: 84,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,841 : 154,341.66 = 61,541.08 : x
  2. Step 2: Convert to fraction form
    111,841/154,341.66 = 61,541.08/x
  3. Step 3: Cross multiply
    111,841x = 154,341.66 × 61,541.08
  4. Step 4: Simplify right side
    111,841x = 9,498,352,445.39
  5. Step 5: Solve for x
    x = 9,498,352,445.39/111,841
  6. Step 6: Final answer
    x = 84,927.28

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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.