Home / 153,039.40-211,133.86-88,496.80

Finding the Fourth Proportional to 153,039.40, 211,133.86 and 88,496.80

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Solution

The fourth proportional to 153,039.40, 211,133.86 and 88,496.80 is: 122,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,039.40 : 211,133.86 = 88,496.80 : x
  2. Step 2: Convert to fraction form
    153,039.40/211,133.86 = 88,496.80/x
  3. Step 3: Cross multiply
    153,039.40x = 211,133.86 × 88,496.80
  4. Step 4: Simplify right side
    153,039.40x = 18,684,670,981.65
  5. Step 5: Solve for x
    x = 18,684,670,981.65/153,039.40
  6. Step 6: Final answer
    x = 122,090.59

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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.