Home / 145,850.10-218,429.55-89,862.90

Finding the Fourth Proportional to 145,850.10, 218,429.55 and 89,862.90

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Solution

The fourth proportional to 145,850.10, 218,429.55 and 89,862.90 is: 134,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.10 : 218,429.55 = 89,862.90 : x
  2. Step 2: Convert to fraction form
    145,850.10/218,429.55 = 89,862.90/x
  3. Step 3: Cross multiply
    145,850.10x = 218,429.55 × 89,862.90
  4. Step 4: Simplify right side
    145,850.10x = 19,628,712,808.70
  5. Step 5: Solve for x
    x = 19,628,712,808.70/145,850.10
  6. Step 6: Final answer
    x = 134,581.41

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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.