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Finding the Fourth Proportional to 164,720.40, 247,085.40 and 59,520.72

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Solution

The fourth proportional to 164,720.40, 247,085.40 and 59,520.72 is: 89,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,720.40 : 247,085.40 = 59,520.72 : x
  2. Step 2: Convert to fraction form
    164,720.40/247,085.40 = 59,520.72/x
  3. Step 3: Cross multiply
    164,720.40x = 247,085.40 × 59,520.72
  4. Step 4: Simplify right side
    164,720.40x = 14,706,700,909.49
  5. Step 5: Solve for x
    x = 14,706,700,909.49/164,720.40
  6. Step 6: Final answer
    x = 89,282.81

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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.