Home / 126,171.86-174,109.65-72,465.62

Finding the Fourth Proportional to 126,171.86, 174,109.65 and 72,465.62

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Solution

The fourth proportional to 126,171.86, 174,109.65 and 72,465.62 is: 99,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,171.86 : 174,109.65 = 72,465.62 : x
  2. Step 2: Convert to fraction form
    126,171.86/174,109.65 = 72,465.62/x
  3. Step 3: Cross multiply
    126,171.86x = 174,109.65 × 72,465.62
  4. Step 4: Simplify right side
    126,171.86x = 12,616,963,735.23
  5. Step 5: Solve for x
    x = 12,616,963,735.23/126,171.86
  6. Step 6: Final answer
    x = 99,998.24

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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.