Home / 139,006.16-208,521.50-39,167.20

Finding the Fourth Proportional to 139,006.16, 208,521.50 and 39,167.20

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Solution

The fourth proportional to 139,006.16, 208,521.50 and 39,167.20 is: 58,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,006.16 : 208,521.50 = 39,167.20 : x
  2. Step 2: Convert to fraction form
    139,006.16/208,521.50 = 39,167.20/x
  3. Step 3: Cross multiply
    139,006.16x = 208,521.50 × 39,167.20
  4. Step 4: Simplify right side
    139,006.16x = 8,167,203,294.80
  5. Step 5: Solve for x
    x = 8,167,203,294.80/139,006.16
  6. Step 6: Final answer
    x = 58,754.25

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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.