Home / 153,941.32-212,379.06-103,673.80

Finding the Fourth Proportional to 153,941.32, 212,379.06 and 103,673.80

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Solution

The fourth proportional to 153,941.32, 212,379.06 and 103,673.80 is: 143,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,941.32 : 212,379.06 = 103,673.80 : x
  2. Step 2: Convert to fraction form
    153,941.32/212,379.06 = 103,673.80/x
  3. Step 3: Cross multiply
    153,941.32x = 212,379.06 × 103,673.80
  4. Step 4: Simplify right side
    153,941.32x = 22,018,144,190.63
  5. Step 5: Solve for x
    x = 22,018,144,190.63/153,941.32
  6. Step 6: Final answer
    x = 143,029.46

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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.