Home / 96,946.60-145,419.90-87,615.40

Finding the Fourth Proportional to 96,946.60, 145,419.90 and 87,615.40

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Solution

The fourth proportional to 96,946.60, 145,419.90 and 87,615.40 is: 131,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,946.60 : 145,419.90 = 87,615.40 : x
  2. Step 2: Convert to fraction form
    96,946.60/145,419.90 = 87,615.40/x
  3. Step 3: Cross multiply
    96,946.60x = 145,419.90 × 87,615.40
  4. Step 4: Simplify right side
    96,946.60x = 12,741,022,706.46
  5. Step 5: Solve for x
    x = 12,741,022,706.46/96,946.60
  6. Step 6: Final answer
    x = 131,423.10

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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.