Home / 139,717.32-209,588.46-39,875.64

Finding the Fourth Proportional to 139,717.32, 209,588.46 and 39,875.64

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Solution

The fourth proportional to 139,717.32, 209,588.46 and 39,875.64 is: 59,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,717.32 : 209,588.46 = 39,875.64 : x
  2. Step 2: Convert to fraction form
    139,717.32/209,588.46 = 39,875.64/x
  3. Step 3: Cross multiply
    139,717.32x = 209,588.46 × 39,875.64
  4. Step 4: Simplify right side
    139,717.32x = 8,357,473,979.11
  5. Step 5: Solve for x
    x = 8,357,473,979.11/139,717.32
  6. Step 6: Final answer
    x = 59,817.02

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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.