Home / 145,750.85-218,132.47-89,626.51

Finding the Fourth Proportional to 145,750.85, 218,132.47 and 89,626.51

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Solution

The fourth proportional to 145,750.85, 218,132.47 and 89,626.51 is: 134,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,750.85 : 218,132.47 = 89,626.51 : x
  2. Step 2: Convert to fraction form
    145,750.85/218,132.47 = 89,626.51/x
  3. Step 3: Cross multiply
    145,750.85x = 218,132.47 × 89,626.51
  4. Step 4: Simplify right side
    145,750.85x = 19,550,451,234.38
  5. Step 5: Solve for x
    x = 19,550,451,234.38/145,750.85
  6. Step 6: Final answer
    x = 134,136.10

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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.