Home / 163,534.20-245,301.30-118,919.40

Finding the Fourth Proportional to 163,534.20, 245,301.30 and 118,919.40

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Solution

The fourth proportional to 163,534.20, 245,301.30 and 118,919.40 is: 178,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,534.20 : 245,301.30 = 118,919.40 : x
  2. Step 2: Convert to fraction form
    163,534.20/245,301.30 = 118,919.40/x
  3. Step 3: Cross multiply
    163,534.20x = 245,301.30 × 118,919.40
  4. Step 4: Simplify right side
    163,534.20x = 29,171,083,415.22
  5. Step 5: Solve for x
    x = 29,171,083,415.22/163,534.20
  6. Step 6: Final answer
    x = 178,379.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.