Home / 113,000.07-155,890.89-69,968.19

Finding the Fourth Proportional to 113,000.07, 155,890.89 and 69,968.19

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Solution

The fourth proportional to 113,000.07, 155,890.89 and 69,968.19 is: 96,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,000.07 : 155,890.89 = 69,968.19 : x
  2. Step 2: Convert to fraction form
    113,000.07/155,890.89 = 69,968.19/x
  3. Step 3: Cross multiply
    113,000.07x = 155,890.89 × 69,968.19
  4. Step 4: Simplify right side
    113,000.07x = 10,907,403,410.79
  5. Step 5: Solve for x
    x = 10,907,403,410.79/113,000.07
  6. Step 6: Final answer
    x = 96,525.63

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Double scale
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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.