Home / 147,272.74-221,241.65-87,340.53

Finding the Fourth Proportional to 147,272.74, 221,241.65 and 87,340.53

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Solution

The fourth proportional to 147,272.74, 221,241.65 and 87,340.53 is: 131,208.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,272.74 : 221,241.65 = 87,340.53 : x
  2. Step 2: Convert to fraction form
    147,272.74/221,241.65 = 87,340.53/x
  3. Step 3: Cross multiply
    147,272.74x = 221,241.65 × 87,340.53
  4. Step 4: Simplify right side
    147,272.74x = 19,323,362,969.07
  5. Step 5: Solve for x
    x = 19,323,362,969.07/147,272.74
  6. Step 6: Final answer
    x = 131,208.01

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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.