Home / 138,875.16-208,904.04-125,884.40

Finding the Fourth Proportional to 138,875.16, 208,904.04 and 125,884.40

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Solution

The fourth proportional to 138,875.16, 208,904.04 and 125,884.40 is: 189,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,875.16 : 208,904.04 = 125,884.40 : x
  2. Step 2: Convert to fraction form
    138,875.16/208,904.04 = 125,884.40/x
  3. Step 3: Cross multiply
    138,875.16x = 208,904.04 × 125,884.40
  4. Step 4: Simplify right side
    138,875.16x = 26,297,759,732.98
  5. Step 5: Solve for x
    x = 26,297,759,732.98/138,875.16
  6. Step 6: Final answer
    x = 189,362.59

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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.