Home / 152,439.46-210,395.86-87,950.34

Finding the Fourth Proportional to 152,439.46, 210,395.86 and 87,950.34

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Solution

The fourth proportional to 152,439.46, 210,395.86 and 87,950.34 is: 121,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,439.46 : 210,395.86 = 87,950.34 : x
  2. Step 2: Convert to fraction form
    152,439.46/210,395.86 = 87,950.34/x
  3. Step 3: Cross multiply
    152,439.46x = 210,395.86 × 87,950.34
  4. Step 4: Simplify right side
    152,439.46x = 18,504,387,421.59
  5. Step 5: Solve for x
    x = 18,504,387,421.59/152,439.46
  6. Step 6: Final answer
    x = 121,388.43

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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.