Home / 156,502.40-234,352.80-86,303.84

Finding the Fourth Proportional to 156,502.40, 234,352.80 and 86,303.84

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Solution

The fourth proportional to 156,502.40, 234,352.80 and 86,303.84 is: 129,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,502.40 : 234,352.80 = 86,303.84 : x
  2. Step 2: Convert to fraction form
    156,502.40/234,352.80 = 86,303.84/x
  3. Step 3: Cross multiply
    156,502.40x = 234,352.80 × 86,303.84
  4. Step 4: Simplify right side
    156,502.40x = 20,225,546,554.75
  5. Step 5: Solve for x
    x = 20,225,546,554.75/156,502.40
  6. Step 6: Final answer
    x = 129,234.74

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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.