Home / 145,801.68-218,208.57-89,677.40

Finding the Fourth Proportional to 145,801.68, 218,208.57 and 89,677.40

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Solution

The fourth proportional to 145,801.68, 218,208.57 and 89,677.40 is: 134,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,801.68 : 218,208.57 = 89,677.40 : x
  2. Step 2: Convert to fraction form
    145,801.68/218,208.57 = 89,677.40/x
  3. Step 3: Cross multiply
    145,801.68x = 218,208.57 × 89,677.40
  4. Step 4: Simplify right side
    145,801.68x = 19,568,376,124.28
  5. Step 5: Solve for x
    x = 19,568,376,124.28/145,801.68
  6. Step 6: Final answer
    x = 134,212.28

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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.