Home / 119,172.54-164,459.30-64,725.78

Finding the Fourth Proportional to 119,172.54, 164,459.30 and 64,725.78

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Solution

The fourth proportional to 119,172.54, 164,459.30 and 64,725.78 is: 89,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,172.54 : 164,459.30 = 64,725.78 : x
  2. Step 2: Convert to fraction form
    119,172.54/164,459.30 = 64,725.78/x
  3. Step 3: Cross multiply
    119,172.54x = 164,459.30 × 64,725.78
  4. Step 4: Simplify right side
    119,172.54x = 10,644,755,376.22
  5. Step 5: Solve for x
    x = 10,644,755,376.22/119,172.54
  6. Step 6: Final answer
    x = 89,322.21

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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.