Home / 153,540.55-211,880.57-85,554.01

Finding the Fourth Proportional to 153,540.55, 211,880.57 and 85,554.01

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Solution

The fourth proportional to 153,540.55, 211,880.57 and 85,554.01 is: 118,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,540.55 : 211,880.57 = 85,554.01 : x
  2. Step 2: Convert to fraction form
    153,540.55/211,880.57 = 85,554.01/x
  3. Step 3: Cross multiply
    153,540.55x = 211,880.57 × 85,554.01
  4. Step 4: Simplify right side
    153,540.55x = 18,127,231,447.11
  5. Step 5: Solve for x
    x = 18,127,231,447.11/153,540.55
  6. Step 6: Final answer
    x = 118,061.53

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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.