Home / 139,157.11-208,569.59-75,993.13

Finding the Fourth Proportional to 139,157.11, 208,569.59 and 75,993.13

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Solution

The fourth proportional to 139,157.11, 208,569.59 and 75,993.13 is: 113,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,157.11 : 208,569.59 = 75,993.13 : x
  2. Step 2: Convert to fraction form
    139,157.11/208,569.59 = 75,993.13/x
  3. Step 3: Cross multiply
    139,157.11x = 208,569.59 × 75,993.13
  4. Step 4: Simplify right side
    139,157.11x = 15,849,855,966.92
  5. Step 5: Solve for x
    x = 15,849,855,966.92/139,157.11
  6. Step 6: Final answer
    x = 113,899.00

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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.