Home / 153,342.57-211,625.70-86,287.53

Finding the Fourth Proportional to 153,342.57, 211,625.70 and 86,287.53

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Solution

The fourth proportional to 153,342.57, 211,625.70 and 86,287.53 is: 119,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,342.57 : 211,625.70 = 86,287.53 : x
  2. Step 2: Convert to fraction form
    153,342.57/211,625.70 = 86,287.53/x
  3. Step 3: Cross multiply
    153,342.57x = 211,625.70 × 86,287.53
  4. Step 4: Simplify right side
    153,342.57x = 18,260,658,937.52
  5. Step 5: Solve for x
    x = 18,260,658,937.52/153,342.57
  6. Step 6: Final answer
    x = 119,084.08

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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.