Home / 158,148.40-218,217.09-93,670.78

Finding the Fourth Proportional to 158,148.40, 218,217.09 and 93,670.78

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Solution

The fourth proportional to 158,148.40, 218,217.09 and 93,670.78 is: 129,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,148.40 : 218,217.09 = 93,670.78 : x
  2. Step 2: Convert to fraction form
    158,148.40/218,217.09 = 93,670.78/x
  3. Step 3: Cross multiply
    158,148.40x = 218,217.09 × 93,670.78
  4. Step 4: Simplify right side
    158,148.40x = 20,440,565,029.63
  5. Step 5: Solve for x
    x = 20,440,565,029.63/158,148.40
  6. Step 6: Final answer
    x = 129,249.27

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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.