Home / 153,105.50-211,290.18-84,191.40

Finding the Fourth Proportional to 153,105.50, 211,290.18 and 84,191.40

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Solution

The fourth proportional to 153,105.50, 211,290.18 and 84,191.40 is: 116,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,105.50 : 211,290.18 = 84,191.40 : x
  2. Step 2: Convert to fraction form
    153,105.50/211,290.18 = 84,191.40/x
  3. Step 3: Cross multiply
    153,105.50x = 211,290.18 × 84,191.40
  4. Step 4: Simplify right side
    153,105.50x = 17,788,816,060.45
  5. Step 5: Solve for x
    x = 17,788,816,060.45/153,105.50
  6. Step 6: Final answer
    x = 116,186.66

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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.