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Finding the Fourth Proportional to 145,859.60, 200,780.52 and 125,783.12

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Solution

The fourth proportional to 145,859.60, 200,780.52 and 125,783.12 is: 173,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,859.60 : 200,780.52 = 125,783.12 : x
  2. Step 2: Convert to fraction form
    145,859.60/200,780.52 = 125,783.12/x
  3. Step 3: Cross multiply
    145,859.60x = 200,780.52 × 125,783.12
  4. Step 4: Simplify right side
    145,859.60x = 25,254,800,240.82
  5. Step 5: Solve for x
    x = 25,254,800,240.82/145,859.60
  6. Step 6: Final answer
    x = 173,144.59

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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.