Home / 132,645.90-183,054.63-72,219.84

Finding the Fourth Proportional to 132,645.90, 183,054.63 and 72,219.84

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Solution

The fourth proportional to 132,645.90, 183,054.63 and 72,219.84 is: 99,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,645.90 : 183,054.63 = 72,219.84 : x
  2. Step 2: Convert to fraction form
    132,645.90/183,054.63 = 72,219.84/x
  3. Step 3: Cross multiply
    132,645.90x = 183,054.63 × 72,219.84
  4. Step 4: Simplify right side
    132,645.90x = 13,220,175,674.23
  5. Step 5: Solve for x
    x = 13,220,175,674.23/132,645.90
  6. Step 6: Final answer
    x = 99,665.16

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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.