Home / 157,548.40-236,476.20-78,751.60

Finding the Fourth Proportional to 157,548.40, 236,476.20 and 78,751.60

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Solution

The fourth proportional to 157,548.40, 236,476.20 and 78,751.60 is: 118,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,548.40 : 236,476.20 = 78,751.60 : x
  2. Step 2: Convert to fraction form
    157,548.40/236,476.20 = 78,751.60/x
  3. Step 3: Cross multiply
    157,548.40x = 236,476.20 × 78,751.60
  4. Step 4: Simplify right side
    157,548.40x = 18,622,879,111.92
  5. Step 5: Solve for x
    x = 18,622,879,111.92/157,548.40
  6. Step 6: Final answer
    x = 118,204.18

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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.