Home / 109,530.70-151,154.30-64,241.35

Finding the Fourth Proportional to 109,530.70, 151,154.30 and 64,241.35

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Solution

The fourth proportional to 109,530.70, 151,154.30 and 64,241.35 is: 88,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.70 : 151,154.30 = 64,241.35 : x
  2. Step 2: Convert to fraction form
    109,530.70/151,154.30 = 64,241.35/x
  3. Step 3: Cross multiply
    109,530.70x = 151,154.30 × 64,241.35
  4. Step 4: Simplify right side
    109,530.70x = 9,710,356,073.02
  5. Step 5: Solve for x
    x = 9,710,356,073.02/109,530.70
  6. Step 6: Final answer
    x = 88,654.20

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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.