Home / 111,920.09-154,451.70-60,934.28

Finding the Fourth Proportional to 111,920.09, 154,451.70 and 60,934.28

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Solution

The fourth proportional to 111,920.09, 154,451.70 and 60,934.28 is: 84,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,920.09 : 154,451.70 = 60,934.28 : x
  2. Step 2: Convert to fraction form
    111,920.09/154,451.70 = 60,934.28/x
  3. Step 3: Cross multiply
    111,920.09x = 154,451.70 × 60,934.28
  4. Step 4: Simplify right side
    111,920.09x = 9,411,402,362.02
  5. Step 5: Solve for x
    x = 9,411,402,362.02/111,920.09
  6. Step 6: Final answer
    x = 84,090.38

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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.