Home / 172,035.03-258,137.09-77,332.13

Finding the Fourth Proportional to 172,035.03, 258,137.09 and 77,332.13

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Solution

The fourth proportional to 172,035.03, 258,137.09 and 77,332.13 is: 116,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,035.03 : 258,137.09 = 77,332.13 : x
  2. Step 2: Convert to fraction form
    172,035.03/258,137.09 = 77,332.13/x
  3. Step 3: Cross multiply
    172,035.03x = 258,137.09 × 77,332.13
  4. Step 4: Simplify right side
    172,035.03x = 19,962,291,001.70
  5. Step 5: Solve for x
    x = 19,962,291,001.70/172,035.03
  6. Step 6: Final answer
    x = 116,036.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.