Home / 147,281.22-203,212.80-86,847.12

Finding the Fourth Proportional to 147,281.22, 203,212.80 and 86,847.12

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Solution

The fourth proportional to 147,281.22, 203,212.80 and 86,847.12 is: 119,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,281.22 : 203,212.80 = 86,847.12 : x
  2. Step 2: Convert to fraction form
    147,281.22/203,212.80 = 86,847.12/x
  3. Step 3: Cross multiply
    147,281.22x = 203,212.80 × 86,847.12
  4. Step 4: Simplify right side
    147,281.22x = 17,648,446,427.14
  5. Step 5: Solve for x
    x = 17,648,446,427.14/147,281.22
  6. Step 6: Final answer
    x = 119,828.22

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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.