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Finding the Fourth Proportional to 180,967.77, 249,727.05 and 100,393.83

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Solution

The fourth proportional to 180,967.77, 249,727.05 and 100,393.83 is: 138,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,967.77 : 249,727.05 = 100,393.83 : x
  2. Step 2: Convert to fraction form
    180,967.77/249,727.05 = 100,393.83/x
  3. Step 3: Cross multiply
    180,967.77x = 249,727.05 × 100,393.83
  4. Step 4: Simplify right side
    180,967.77x = 25,071,055,004.10
  5. Step 5: Solve for x
    x = 25,071,055,004.10/180,967.77
  6. Step 6: Final answer
    x = 138,538.79

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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.