Home / 153,066.24-211,230.05-85,081.50

Finding the Fourth Proportional to 153,066.24, 211,230.05 and 85,081.50

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Solution

The fourth proportional to 153,066.24, 211,230.05 and 85,081.50 is: 117,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,066.24 : 211,230.05 = 85,081.50 : x
  2. Step 2: Convert to fraction form
    153,066.24/211,230.05 = 85,081.50/x
  3. Step 3: Cross multiply
    153,066.24x = 211,230.05 × 85,081.50
  4. Step 4: Simplify right side
    153,066.24x = 17,971,769,073.67
  5. Step 5: Solve for x
    x = 17,971,769,073.67/153,066.24
  6. Step 6: Final answer
    x = 117,411.71

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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.