Home / 93,668.16-139,834.56-90,386.88

Finding the Fourth Proportional to 93,668.16, 139,834.56 and 90,386.88

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Solution

The fourth proportional to 93,668.16, 139,834.56 and 90,386.88 is: 134,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,668.16 : 139,834.56 = 90,386.88 : x
  2. Step 2: Convert to fraction form
    93,668.16/139,834.56 = 90,386.88/x
  3. Step 3: Cross multiply
    93,668.16x = 139,834.56 × 90,386.88
  4. Step 4: Simplify right side
    93,668.16x = 12,639,209,594.57
  5. Step 5: Solve for x
    x = 12,639,209,594.57/93,668.16
  6. Step 6: Final answer
    x = 134,936.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.