Home / 113,161.40-156,097.77-70,646.12

Finding the Fourth Proportional to 113,161.40, 156,097.77 and 70,646.12

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Solution

The fourth proportional to 113,161.40, 156,097.77 and 70,646.12 is: 97,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,161.40 : 156,097.77 = 70,646.12 : x
  2. Step 2: Convert to fraction form
    113,161.40/156,097.77 = 70,646.12/x
  3. Step 3: Cross multiply
    113,161.40x = 156,097.77 × 70,646.12
  4. Step 4: Simplify right side
    113,161.40x = 11,027,701,010.66
  5. Step 5: Solve for x
    x = 11,027,701,010.66/113,161.40
  6. Step 6: Final answer
    x = 97,451.09

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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.