Home / 153,640.08-230,293.53-78,657.35

Finding the Fourth Proportional to 153,640.08, 230,293.53 and 78,657.35

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Solution

The fourth proportional to 153,640.08, 230,293.53 and 78,657.35 is: 117,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,640.08 : 230,293.53 = 78,657.35 : x
  2. Step 2: Convert to fraction form
    153,640.08/230,293.53 = 78,657.35/x
  3. Step 3: Cross multiply
    153,640.08x = 230,293.53 × 78,657.35
  4. Step 4: Simplify right side
    153,640.08x = 18,114,277,640.48
  5. Step 5: Solve for x
    x = 18,114,277,640.48/153,640.08
  6. Step 6: Final answer
    x = 117,900.73

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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.