Home / 113,624.71-157,085.54-85,281.19

Finding the Fourth Proportional to 113,624.71, 157,085.54 and 85,281.19

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Solution

The fourth proportional to 113,624.71, 157,085.54 and 85,281.19 is: 117,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,624.71 : 157,085.54 = 85,281.19 : x
  2. Step 2: Convert to fraction form
    113,624.71/157,085.54 = 85,281.19/x
  3. Step 3: Cross multiply
    113,624.71x = 157,085.54 × 85,281.19
  4. Step 4: Simplify right side
    113,624.71x = 13,396,441,782.99
  5. Step 5: Solve for x
    x = 13,396,441,782.99/113,624.71
  6. Step 6: Final answer
    x = 117,900.78

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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.