Home / 113,615.46-157,072.77-85,271.94

Finding the Fourth Proportional to 113,615.46, 157,072.77 and 85,271.94

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Solution

The fourth proportional to 113,615.46, 157,072.77 and 85,271.94 is: 117,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,615.46 : 157,072.77 = 85,271.94 : x
  2. Step 2: Convert to fraction form
    113,615.46/157,072.77 = 85,271.94/x
  3. Step 3: Cross multiply
    113,615.46x = 157,072.77 × 85,271.94
  4. Step 4: Simplify right side
    113,615.46x = 13,393,899,819.07
  5. Step 5: Solve for x
    x = 13,393,899,819.07/113,615.46
  6. Step 6: Final answer
    x = 117,888.00

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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.