Home / 118,140.34-163,030.06-67,158.64

Finding the Fourth Proportional to 118,140.34, 163,030.06 and 67,158.64

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Solution

The fourth proportional to 118,140.34, 163,030.06 and 67,158.64 is: 92,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,140.34 : 163,030.06 = 67,158.64 : x
  2. Step 2: Convert to fraction form
    118,140.34/163,030.06 = 67,158.64/x
  3. Step 3: Cross multiply
    118,140.34x = 163,030.06 × 67,158.64
  4. Step 4: Simplify right side
    118,140.34x = 10,948,877,108.72
  5. Step 5: Solve for x
    x = 10,948,877,108.72/118,140.34
  6. Step 6: Final answer
    x = 92,676.87

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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.