Home / 136,090.08-187,808.16-82,384.80

Finding the Fourth Proportional to 136,090.08, 187,808.16 and 82,384.80

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Solution

The fourth proportional to 136,090.08, 187,808.16 and 82,384.80 is: 113,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,090.08 : 187,808.16 = 82,384.80 : x
  2. Step 2: Convert to fraction form
    136,090.08/187,808.16 = 82,384.80/x
  3. Step 3: Cross multiply
    136,090.08x = 187,808.16 × 82,384.80
  4. Step 4: Simplify right side
    136,090.08x = 15,472,537,699.97
  5. Step 5: Solve for x
    x = 15,472,537,699.97/136,090.08
  6. Step 6: Final answer
    x = 113,693.35

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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.