Home / 213,350.15-320,024.07-86,989.91

Finding the Fourth Proportional to 213,350.15, 320,024.07 and 86,989.91

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Solution

The fourth proportional to 213,350.15, 320,024.07 and 86,989.91 is: 130,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,350.15 : 320,024.07 = 86,989.91 : x
  2. Step 2: Convert to fraction form
    213,350.15/320,024.07 = 86,989.91/x
  3. Step 3: Cross multiply
    213,350.15x = 320,024.07 × 86,989.91
  4. Step 4: Simplify right side
    213,350.15x = 27,838,863,447.01
  5. Step 5: Solve for x
    x = 27,838,863,447.01/213,350.15
  6. Step 6: Final answer
    x = 130,484.39

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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.