Home / 85,636.22-128,288.09-63,106.00

Finding the Fourth Proportional to 85,636.22, 128,288.09 and 63,106.00

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Solution

The fourth proportional to 85,636.22, 128,288.09 and 63,106.00 is: 94,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,636.22 : 128,288.09 = 63,106.00 : x
  2. Step 2: Convert to fraction form
    85,636.22/128,288.09 = 63,106.00/x
  3. Step 3: Cross multiply
    85,636.22x = 128,288.09 × 63,106.00
  4. Step 4: Simplify right side
    85,636.22x = 8,095,748,044.58
  5. Step 5: Solve for x
    x = 8,095,748,044.58/85,636.22
  6. Step 6: Final answer
    x = 94,536.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.