Home / 93,284.43-128,602.08-78,886.41

Finding the Fourth Proportional to 93,284.43, 128,602.08 and 78,886.41

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Solution

The fourth proportional to 93,284.43, 128,602.08 and 78,886.41 is: 108,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,284.43 : 128,602.08 = 78,886.41 : x
  2. Step 2: Convert to fraction form
    93,284.43/128,602.08 = 78,886.41/x
  3. Step 3: Cross multiply
    93,284.43x = 128,602.08 × 78,886.41
  4. Step 4: Simplify right side
    93,284.43x = 10,144,956,409.73
  5. Step 5: Solve for x
    x = 10,144,956,409.73/93,284.43
  6. Step 6: Final answer
    x = 108,752.94

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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.