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Finding the Fourth Proportional to 145,785.42, 218,182.14 and 89,595.90

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Solution

The fourth proportional to 145,785.42, 218,182.14 and 89,595.90 is: 134,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,785.42 : 218,182.14 = 89,595.90 : x
  2. Step 2: Convert to fraction form
    145,785.42/218,182.14 = 89,595.90/x
  3. Step 3: Cross multiply
    145,785.42x = 218,182.14 × 89,595.90
  4. Step 4: Simplify right side
    145,785.42x = 19,548,225,197.23
  5. Step 5: Solve for x
    x = 19,548,225,197.23/145,785.42
  6. Step 6: Final answer
    x = 134,089.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.