Home / 117,740.48-162,442.08-66,747.72

Finding the Fourth Proportional to 117,740.48, 162,442.08 and 66,747.72

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Solution

The fourth proportional to 117,740.48, 162,442.08 and 66,747.72 is: 92,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.48 : 162,442.08 = 66,747.72 : x
  2. Step 2: Convert to fraction form
    117,740.48/162,442.08 = 66,747.72/x
  3. Step 3: Cross multiply
    117,740.48x = 162,442.08 × 66,747.72
  4. Step 4: Simplify right side
    117,740.48x = 10,842,638,472.06
  5. Step 5: Solve for x
    x = 10,842,638,472.06/117,740.48
  6. Step 6: Final answer
    x = 92,089.30

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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.