Home / 153,330.81-211,596.46-85,346.31

Finding the Fourth Proportional to 153,330.81, 211,596.46 and 85,346.31

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Solution

The fourth proportional to 153,330.81, 211,596.46 and 85,346.31 is: 117,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,330.81 : 211,596.46 = 85,346.31 : x
  2. Step 2: Convert to fraction form
    153,330.81/211,596.46 = 85,346.31/x
  3. Step 3: Cross multiply
    153,330.81x = 211,596.46 × 85,346.31
  4. Step 4: Simplify right side
    153,330.81x = 18,058,977,070.06
  5. Step 5: Solve for x
    x = 18,058,977,070.06/153,330.81
  6. Step 6: Final answer
    x = 117,777.88

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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.