Home / 131,685.48-197,548.74-42,918.39

Finding the Fourth Proportional to 131,685.48, 197,548.74 and 42,918.39

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Solution

The fourth proportional to 131,685.48, 197,548.74 and 42,918.39 is: 64,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,685.48 : 197,548.74 = 42,918.39 : x
  2. Step 2: Convert to fraction form
    131,685.48/197,548.74 = 42,918.39/x
  3. Step 3: Cross multiply
    131,685.48x = 197,548.74 × 42,918.39
  4. Step 4: Simplify right side
    131,685.48x = 8,478,473,867.33
  5. Step 5: Solve for x
    x = 8,478,473,867.33/131,685.48
  6. Step 6: Final answer
    x = 64,384.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.