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Finding the Fourth Proportional to 139,607.65, 209,332.14 and 95,288.05

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Solution

The fourth proportional to 139,607.65, 209,332.14 and 95,288.05 is: 142,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,607.65 : 209,332.14 = 95,288.05 : x
  2. Step 2: Convert to fraction form
    139,607.65/209,332.14 = 95,288.05/x
  3. Step 3: Cross multiply
    139,607.65x = 209,332.14 × 95,288.05
  4. Step 4: Simplify right side
    139,607.65x = 19,946,851,422.93
  5. Step 5: Solve for x
    x = 19,946,851,422.93/139,607.65
  6. Step 6: Final answer
    x = 142,877.93

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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.