Home / 86,341.07-118,287.70-83,105.16

Finding the Fourth Proportional to 86,341.07, 118,287.70 and 83,105.16

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Solution

The fourth proportional to 86,341.07, 118,287.70 and 83,105.16 is: 113,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,341.07 : 118,287.70 = 83,105.16 : x
  2. Step 2: Convert to fraction form
    86,341.07/118,287.70 = 83,105.16/x
  3. Step 3: Cross multiply
    86,341.07x = 118,287.70 × 83,105.16
  4. Step 4: Simplify right side
    86,341.07x = 9,830,318,026.77
  5. Step 5: Solve for x
    x = 9,830,318,026.77/86,341.07
  6. Step 6: Final answer
    x = 113,854.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.