Home / 145,753.23-218,136.04-89,628.89

Finding the Fourth Proportional to 145,753.23, 218,136.04 and 89,628.89

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Solution

The fourth proportional to 145,753.23, 218,136.04 and 89,628.89 is: 134,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,753.23 : 218,136.04 = 89,628.89 : x
  2. Step 2: Convert to fraction form
    145,753.23/218,136.04 = 89,628.89/x
  3. Step 3: Cross multiply
    145,753.23x = 218,136.04 × 89,628.89
  4. Step 4: Simplify right side
    145,753.23x = 19,551,290,043.52
  5. Step 5: Solve for x
    x = 19,551,290,043.52/145,753.23
  6. Step 6: Final answer
    x = 134,139.67

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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.