Home / 152,905.32-211,010.67-89,230.68

Finding the Fourth Proportional to 152,905.32, 211,010.67 and 89,230.68

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Solution

The fourth proportional to 152,905.32, 211,010.67 and 89,230.68 is: 123,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,905.32 : 211,010.67 = 89,230.68 : x
  2. Step 2: Convert to fraction form
    152,905.32/211,010.67 = 89,230.68/x
  3. Step 3: Cross multiply
    152,905.32x = 211,010.67 × 89,230.68
  4. Step 4: Simplify right side
    152,905.32x = 18,828,625,571.36
  5. Step 5: Solve for x
    x = 18,828,625,571.36/152,905.32
  6. Step 6: Final answer
    x = 123,139.11

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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.