Home / 153,581.56-211,943.54-85,602.85

Finding the Fourth Proportional to 153,581.56, 211,943.54 and 85,602.85

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Solution

The fourth proportional to 153,581.56, 211,943.54 and 85,602.85 is: 118,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,581.56 : 211,943.54 = 85,602.85 : x
  2. Step 2: Convert to fraction form
    153,581.56/211,943.54 = 85,602.85/x
  3. Step 3: Cross multiply
    153,581.56x = 211,943.54 × 85,602.85
  4. Step 4: Simplify right side
    153,581.56x = 18,142,971,532.42
  5. Step 5: Solve for x
    x = 18,142,971,532.42/153,581.56
  6. Step 6: Final answer
    x = 118,132.48

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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.