Home / 138,877.16-208,907.04-125,886.40

Finding the Fourth Proportional to 138,877.16, 208,907.04 and 125,886.40

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Solution

The fourth proportional to 138,877.16, 208,907.04 and 125,886.40 is: 189,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.16 : 208,907.04 = 125,886.40 : x
  2. Step 2: Convert to fraction form
    138,877.16/208,907.04 = 125,886.40/x
  3. Step 3: Cross multiply
    138,877.16x = 208,907.04 × 125,886.40
  4. Step 4: Simplify right side
    138,877.16x = 26,298,555,200.26
  5. Step 5: Solve for x
    x = 26,298,555,200.26/138,877.16
  6. Step 6: Final answer
    x = 189,365.59

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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.