Home / 99,701.45-137,633.88-86,035.13

Finding the Fourth Proportional to 99,701.45, 137,633.88 and 86,035.13

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Solution

The fourth proportional to 99,701.45, 137,633.88 and 86,035.13 is: 118,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,701.45 : 137,633.88 = 86,035.13 : x
  2. Step 2: Convert to fraction form
    99,701.45/137,633.88 = 86,035.13/x
  3. Step 3: Cross multiply
    99,701.45x = 137,633.88 × 86,035.13
  4. Step 4: Simplify right side
    99,701.45x = 11,841,348,070.04
  5. Step 5: Solve for x
    x = 11,841,348,070.04/99,701.45
  6. Step 6: Final answer
    x = 118,768.07

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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.