Home / 81,202.29-122,254.70-70,352.03

Finding the Fourth Proportional to 81,202.29, 122,254.70 and 70,352.03

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Solution

The fourth proportional to 81,202.29, 122,254.70 and 70,352.03 is: 105,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,202.29 : 122,254.70 = 70,352.03 : x
  2. Step 2: Convert to fraction form
    81,202.29/122,254.70 = 70,352.03/x
  3. Step 3: Cross multiply
    81,202.29x = 122,254.70 × 70,352.03
  4. Step 4: Simplify right side
    81,202.29x = 8,600,866,322.04
  5. Step 5: Solve for x
    x = 8,600,866,322.04/81,202.29
  6. Step 6: Final answer
    x = 105,919.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.