Home / 127,121.94-175,432.23-70,538.58

Finding the Fourth Proportional to 127,121.94, 175,432.23 and 70,538.58

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Solution

The fourth proportional to 127,121.94, 175,432.23 and 70,538.58 is: 97,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.94 : 175,432.23 = 70,538.58 : x
  2. Step 2: Convert to fraction form
    127,121.94/175,432.23 = 70,538.58/x
  3. Step 3: Cross multiply
    127,121.94x = 175,432.23 × 70,538.58
  4. Step 4: Simplify right side
    127,121.94x = 12,374,740,390.43
  5. Step 5: Solve for x
    x = 12,374,740,390.43/127,121.94
  6. Step 6: Final answer
    x = 97,345.43

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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.