Home / 113,653.26-156,875.94-65,918.34

Finding the Fourth Proportional to 113,653.26, 156,875.94 and 65,918.34

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Solution

The fourth proportional to 113,653.26, 156,875.94 and 65,918.34 is: 90,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,653.26 : 156,875.94 = 65,918.34 : x
  2. Step 2: Convert to fraction form
    113,653.26/156,875.94 = 65,918.34/x
  3. Step 3: Cross multiply
    113,653.26x = 156,875.94 × 65,918.34
  4. Step 4: Simplify right side
    113,653.26x = 10,341,001,550.74
  5. Step 5: Solve for x
    x = 10,341,001,550.74/113,653.26
  6. Step 6: Final answer
    x = 90,987.28

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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.