Home / 93,227.16-128,658.92-70,215.78

Finding the Fourth Proportional to 93,227.16, 128,658.92 and 70,215.78

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Solution

The fourth proportional to 93,227.16, 128,658.92 and 70,215.78 is: 96,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,227.16 : 128,658.92 = 70,215.78 : x
  2. Step 2: Convert to fraction form
    93,227.16/128,658.92 = 70,215.78/x
  3. Step 3: Cross multiply
    93,227.16x = 128,658.92 × 70,215.78
  4. Step 4: Simplify right side
    93,227.16x = 9,033,886,070.68
  5. Step 5: Solve for x
    x = 9,033,886,070.68/93,227.16
  6. Step 6: Final answer
    x = 96,901.87

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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.