Home / 153,581.56-211,939.32-85,598.20

Finding the Fourth Proportional to 153,581.56, 211,939.32 and 85,598.20

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Solution

The fourth proportional to 153,581.56, 211,939.32 and 85,598.20 is: 118,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,581.56 : 211,939.32 = 85,598.20 : x
  2. Step 2: Convert to fraction form
    153,581.56/211,939.32 = 85,598.20/x
  3. Step 3: Cross multiply
    153,581.56x = 211,939.32 × 85,598.20
  4. Step 4: Simplify right side
    153,581.56x = 18,141,624,301.22
  5. Step 5: Solve for x
    x = 18,141,624,301.22/153,581.56
  6. Step 6: Final answer
    x = 118,123.71

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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.