Home / 144,130.34-198,841.95-90,395.75

Finding the Fourth Proportional to 144,130.34, 198,841.95 and 90,395.75

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Solution

The fourth proportional to 144,130.34, 198,841.95 and 90,395.75 is: 124,709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,130.34 : 198,841.95 = 90,395.75 : x
  2. Step 2: Convert to fraction form
    144,130.34/198,841.95 = 90,395.75/x
  3. Step 3: Cross multiply
    144,130.34x = 198,841.95 × 90,395.75
  4. Step 4: Simplify right side
    144,130.34x = 17,974,468,251.76
  5. Step 5: Solve for x
    x = 17,974,468,251.76/144,130.34
  6. Step 6: Final answer
    x = 124,709.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.