Home / 189,427.84-261,402.78-104,543.80

Finding the Fourth Proportional to 189,427.84, 261,402.78 and 104,543.80

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Solution

The fourth proportional to 189,427.84, 261,402.78 and 104,543.80 is: 144,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,427.84 : 261,402.78 = 104,543.80 : x
  2. Step 2: Convert to fraction form
    189,427.84/261,402.78 = 104,543.80/x
  3. Step 3: Cross multiply
    189,427.84x = 261,402.78 × 104,543.80
  4. Step 4: Simplify right side
    189,427.84x = 27,328,039,951.76
  5. Step 5: Solve for x
    x = 27,328,039,951.76/189,427.84
  6. Step 6: Final answer
    x = 144,266.23

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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.