Home / 135,288.10-202,710.49-72,041.07

Finding the Fourth Proportional to 135,288.10, 202,710.49 and 72,041.07

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Solution

The fourth proportional to 135,288.10, 202,710.49 and 72,041.07 is: 107,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,288.10 : 202,710.49 = 72,041.07 : x
  2. Step 2: Convert to fraction form
    135,288.10/202,710.49 = 72,041.07/x
  3. Step 3: Cross multiply
    135,288.10x = 202,710.49 × 72,041.07
  4. Step 4: Simplify right side
    135,288.10x = 14,603,480,599.82
  5. Step 5: Solve for x
    x = 14,603,480,599.82/135,288.10
  6. Step 6: Final answer
    x = 107,943.57

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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.