Home / 115,287.37-171,784.99-102,710.76

Finding the Fourth Proportional to 115,287.37, 171,784.99 and 102,710.76

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Solution

The fourth proportional to 115,287.37, 171,784.99 and 102,710.76 is: 153,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,287.37 : 171,784.99 = 102,710.76 : x
  2. Step 2: Convert to fraction form
    115,287.37/171,784.99 = 102,710.76/x
  3. Step 3: Cross multiply
    115,287.37x = 171,784.99 × 102,710.76
  4. Step 4: Simplify right side
    115,287.37x = 17,644,166,363.69
  5. Step 5: Solve for x
    x = 17,644,166,363.69/115,287.37
  6. Step 6: Final answer
    x = 153,045.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.