Home / 101,272.41-139,665.13-84,332.75

Finding the Fourth Proportional to 101,272.41, 139,665.13 and 84,332.75

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Solution

The fourth proportional to 101,272.41, 139,665.13 and 84,332.75 is: 116,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,272.41 : 139,665.13 = 84,332.75 : x
  2. Step 2: Convert to fraction form
    101,272.41/139,665.13 = 84,332.75/x
  3. Step 3: Cross multiply
    101,272.41x = 139,665.13 × 84,332.75
  4. Step 4: Simplify right side
    101,272.41x = 11,778,343,582.85
  5. Step 5: Solve for x
    x = 11,778,343,582.85/101,272.41
  6. Step 6: Final answer
    x = 116,303.58

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1.5x scale

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.