Home / 153,640.40-212,186.76-125,034.32

Finding the Fourth Proportional to 153,640.40, 212,186.76 and 125,034.32

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Solution

The fourth proportional to 153,640.40, 212,186.76 and 125,034.32 is: 172,680.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,640.40 : 212,186.76 = 125,034.32 : x
  2. Step 2: Convert to fraction form
    153,640.40/212,186.76 = 125,034.32/x
  3. Step 3: Cross multiply
    153,640.40x = 212,186.76 × 125,034.32
  4. Step 4: Simplify right side
    153,640.40x = 26,530,627,249.60
  5. Step 5: Solve for x
    x = 26,530,627,249.60/153,640.40
  6. Step 6: Final answer
    x = 172,680.02

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1.5x scale

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.