Home / 171,221.07-236,510.85-131,426.58

Finding the Fourth Proportional to 171,221.07, 236,510.85 and 131,426.58

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Solution

The fourth proportional to 171,221.07, 236,510.85 and 131,426.58 is: 181,541.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221.07 : 236,510.85 = 131,426.58 : x
  2. Step 2: Convert to fraction form
    171,221.07/236,510.85 = 131,426.58/x
  3. Step 3: Cross multiply
    171,221.07x = 236,510.85 × 131,426.58
  4. Step 4: Simplify right side
    171,221.07x = 31,083,812,148.39
  5. Step 5: Solve for x
    x = 31,083,812,148.39/171,221.07
  6. Step 6: Final answer
    x = 181,541.98

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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.