Home / 153,542.43-211,895.06-85,559.45

Finding the Fourth Proportional to 153,542.43, 211,895.06 and 85,559.45

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Solution

The fourth proportional to 153,542.43, 211,895.06 and 85,559.45 is: 118,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,542.43 : 211,895.06 = 85,559.45 : x
  2. Step 2: Convert to fraction form
    153,542.43/211,895.06 = 85,559.45/x
  3. Step 3: Cross multiply
    153,542.43x = 211,895.06 × 85,559.45
  4. Step 4: Simplify right side
    153,542.43x = 18,129,623,304.04
  5. Step 5: Solve for x
    x = 18,129,623,304.04/153,542.43
  6. Step 6: Final answer
    x = 118,075.66

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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.