Home / 153,133.04-211,205.84-135,923.20

Finding the Fourth Proportional to 153,133.04, 211,205.84 and 135,923.20

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Solution

The fourth proportional to 153,133.04, 211,205.84 and 135,923.20 is: 187,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,133.04 : 211,205.84 = 135,923.20 : x
  2. Step 2: Convert to fraction form
    153,133.04/211,205.84 = 135,923.20/x
  3. Step 3: Cross multiply
    153,133.04x = 211,205.84 × 135,923.20
  4. Step 4: Simplify right side
    153,133.04x = 28,707,773,631.49
  5. Step 5: Solve for x
    x = 28,707,773,631.49/153,133.04
  6. Step 6: Final answer
    x = 187,469.49

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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.