Home / 152,421.94-210,322.33-87,893.56

Finding the Fourth Proportional to 152,421.94, 210,322.33 and 87,893.56

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Solution

The fourth proportional to 152,421.94, 210,322.33 and 87,893.56 is: 121,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,421.94 : 210,322.33 = 87,893.56 : x
  2. Step 2: Convert to fraction form
    152,421.94/210,322.33 = 87,893.56/x
  3. Step 3: Cross multiply
    152,421.94x = 210,322.33 × 87,893.56
  4. Step 4: Simplify right side
    152,421.94x = 18,485,978,331.19
  5. Step 5: Solve for x
    x = 18,485,978,331.19/152,421.94
  6. Step 6: Final answer
    x = 121,281.61

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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.