Home / 110,905.60-153,077.20-63,187.28

Finding the Fourth Proportional to 110,905.60, 153,077.20 and 63,187.28

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Solution

The fourth proportional to 110,905.60, 153,077.20 and 63,187.28 is: 87,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,905.60 : 153,077.20 = 63,187.28 : x
  2. Step 2: Convert to fraction form
    110,905.60/153,077.20 = 63,187.28/x
  3. Step 3: Cross multiply
    110,905.60x = 153,077.20 × 63,187.28
  4. Step 4: Simplify right side
    110,905.60x = 9,672,531,898.02
  5. Step 5: Solve for x
    x = 9,672,531,898.02/110,905.60
  6. Step 6: Final answer
    x = 87,214.10

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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.