Home / 118,378.20-177,567.30-74,141.40

Finding the Fourth Proportional to 118,378.20, 177,567.30 and 74,141.40

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Solution

The fourth proportional to 118,378.20, 177,567.30 and 74,141.40 is: 111,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,378.20 : 177,567.30 = 74,141.40 : x
  2. Step 2: Convert to fraction form
    118,378.20/177,567.30 = 74,141.40/x
  3. Step 3: Cross multiply
    118,378.20x = 177,567.30 × 74,141.40
  4. Step 4: Simplify right side
    118,378.20x = 13,165,088,216.22
  5. Step 5: Solve for x
    x = 13,165,088,216.22/118,378.20
  6. Step 6: Final answer
    x = 111,212.10

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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.