Home / 118,442.12-177,748.88-46,405.78

Finding the Fourth Proportional to 118,442.12, 177,748.88 and 46,405.78

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Solution

The fourth proportional to 118,442.12, 177,748.88 and 46,405.78 is: 69,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,442.12 : 177,748.88 = 46,405.78 : x
  2. Step 2: Convert to fraction form
    118,442.12/177,748.88 = 46,405.78/x
  3. Step 3: Cross multiply
    118,442.12x = 177,748.88 × 46,405.78
  4. Step 4: Simplify right side
    118,442.12x = 8,248,574,744.13
  5. Step 5: Solve for x
    x = 8,248,574,744.13/118,442.12
  6. Step 6: Final answer
    x = 69,642.24

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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.