Home / 93,908.96-129,321.28-87,905.60

Finding the Fourth Proportional to 93,908.96, 129,321.28 and 87,905.60

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Solution

The fourth proportional to 93,908.96, 129,321.28 and 87,905.60 is: 121,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,908.96 : 129,321.28 = 87,905.60 : x
  2. Step 2: Convert to fraction form
    93,908.96/129,321.28 = 87,905.60/x
  3. Step 3: Cross multiply
    93,908.96x = 129,321.28 × 87,905.60
  4. Step 4: Simplify right side
    93,908.96x = 11,368,064,711.17
  5. Step 5: Solve for x
    x = 11,368,064,711.17/93,908.96
  6. Step 6: Final answer
    x = 121,054.10

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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.