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Finding the Fourth Proportional to 101,260.64, 139,740.86 and 55,937.68

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Solution

The fourth proportional to 101,260.64, 139,740.86 and 55,937.68 is: 77,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,260.64 : 139,740.86 = 55,937.68 : x
  2. Step 2: Convert to fraction form
    101,260.64/139,740.86 = 55,937.68/x
  3. Step 3: Cross multiply
    101,260.64x = 139,740.86 × 55,937.68
  4. Step 4: Simplify right side
    101,260.64x = 7,816,778,985.45
  5. Step 5: Solve for x
    x = 7,816,778,985.45/101,260.64
  6. Step 6: Final answer
    x = 77,194.64

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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.