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Finding the Fourth Proportional to 124,326.34, 171,434.40 and 83,970.04

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Solution

The fourth proportional to 124,326.34, 171,434.40 and 83,970.04 is: 115,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,326.34 : 171,434.40 = 83,970.04 : x
  2. Step 2: Convert to fraction form
    124,326.34/171,434.40 = 83,970.04/x
  3. Step 3: Cross multiply
    124,326.34x = 171,434.40 × 83,970.04
  4. Step 4: Simplify right side
    124,326.34x = 14,395,353,425.38
  5. Step 5: Solve for x
    x = 14,395,353,425.38/124,326.34
  6. Step 6: Final answer
    x = 115,786.84

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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.