Home / 93,276.28-128,661.78-76,305.16

Finding the Fourth Proportional to 93,276.28, 128,661.78 and 76,305.16

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Solution

The fourth proportional to 93,276.28, 128,661.78 and 76,305.16 is: 105,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,276.28 : 128,661.78 = 76,305.16 : x
  2. Step 2: Convert to fraction form
    93,276.28/128,661.78 = 76,305.16/x
  3. Step 3: Cross multiply
    93,276.28x = 128,661.78 × 76,305.16
  4. Step 4: Simplify right side
    93,276.28x = 9,817,557,708.78
  5. Step 5: Solve for x
    x = 9,817,557,708.78/93,276.28
  6. Step 6: Final answer
    x = 105,252.46

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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.