Home / 113,025.60-169,538.40-86,453.55

Finding the Fourth Proportional to 113,025.60, 169,538.40 and 86,453.55

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Solution

The fourth proportional to 113,025.60, 169,538.40 and 86,453.55 is: 129,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,025.60 : 169,538.40 = 86,453.55 : x
  2. Step 2: Convert to fraction form
    113,025.60/169,538.40 = 86,453.55/x
  3. Step 3: Cross multiply
    113,025.60x = 169,538.40 × 86,453.55
  4. Step 4: Simplify right side
    113,025.60x = 14,657,196,541.32
  5. Step 5: Solve for x
    x = 14,657,196,541.32/113,025.60
  6. Step 6: Final answer
    x = 129,680.33

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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.