Home / 153,075.12-211,157.37-91,805.01

Finding the Fourth Proportional to 153,075.12, 211,157.37 and 91,805.01

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Solution

The fourth proportional to 153,075.12, 211,157.37 and 91,805.01 is: 126,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,075.12 : 211,157.37 = 91,805.01 : x
  2. Step 2: Convert to fraction form
    153,075.12/211,157.37 = 91,805.01/x
  3. Step 3: Cross multiply
    153,075.12x = 211,157.37 × 91,805.01
  4. Step 4: Simplify right side
    153,075.12x = 19,385,304,464.42
  5. Step 5: Solve for x
    x = 19,385,304,464.42/153,075.12
  6. Step 6: Final answer
    x = 126,639.16

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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.