Home / 189,009.51-283,415.82-89,142.88

Finding the Fourth Proportional to 189,009.51, 283,415.82 and 89,142.88

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Solution

The fourth proportional to 189,009.51, 283,415.82 and 89,142.88 is: 133,667.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,009.51 : 283,415.82 = 89,142.88 : x
  2. Step 2: Convert to fraction form
    189,009.51/283,415.82 = 89,142.88/x
  3. Step 3: Cross multiply
    189,009.51x = 283,415.82 × 89,142.88
  4. Step 4: Simplify right side
    189,009.51x = 25,264,502,432.36
  5. Step 5: Solve for x
    x = 25,264,502,432.36/189,009.51
  6. Step 6: Final answer
    x = 133,667.89

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1.5x scale

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.