Home / 177,895.68-245,697.60-121,208.64

Finding the Fourth Proportional to 177,895.68, 245,697.60 and 121,208.64

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Solution

The fourth proportional to 177,895.68, 245,697.60 and 121,208.64 is: 167,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,895.68 : 245,697.60 = 121,208.64 : x
  2. Step 2: Convert to fraction form
    177,895.68/245,697.60 = 121,208.64/x
  3. Step 3: Cross multiply
    177,895.68x = 245,697.60 × 121,208.64
  4. Step 4: Simplify right side
    177,895.68x = 29,780,671,947.26
  5. Step 5: Solve for x
    x = 29,780,671,947.26/177,895.68
  6. Step 6: Final answer
    x = 167,405.26

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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.