Home / 152,931.75-211,045.82-85,863.75

Finding the Fourth Proportional to 152,931.75, 211,045.82 and 85,863.75

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Solution

The fourth proportional to 152,931.75, 211,045.82 and 85,863.75 is: 118,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,931.75 : 211,045.82 = 85,863.75 : x
  2. Step 2: Convert to fraction form
    152,931.75/211,045.82 = 85,863.75/x
  3. Step 3: Cross multiply
    152,931.75x = 211,045.82 × 85,863.75
  4. Step 4: Simplify right side
    152,931.75x = 18,121,185,527.03
  5. Step 5: Solve for x
    x = 18,121,185,527.03/152,931.75
  6. Step 6: Final answer
    x = 118,491.98

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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.