Home / 111,904.89-154,428.30-60,920.45

Finding the Fourth Proportional to 111,904.89, 154,428.30 and 60,920.45

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Solution

The fourth proportional to 111,904.89, 154,428.30 and 60,920.45 is: 84,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,904.89 : 154,428.30 = 60,920.45 : x
  2. Step 2: Convert to fraction form
    111,904.89/154,428.30 = 60,920.45/x
  3. Step 3: Cross multiply
    111,904.89x = 154,428.30 × 60,920.45
  4. Step 4: Simplify right side
    111,904.89x = 9,407,841,914.81
  5. Step 5: Solve for x
    x = 9,407,841,914.81/111,904.89
  6. Step 6: Final answer
    x = 84,069.98

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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.