Home / 103,280.80-154,921.20-96,282.40

Finding the Fourth Proportional to 103,280.80, 154,921.20 and 96,282.40

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Solution

The fourth proportional to 103,280.80, 154,921.20 and 96,282.40 is: 144,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,280.80 : 154,921.20 = 96,282.40 : x
  2. Step 2: Convert to fraction form
    103,280.80/154,921.20 = 96,282.40/x
  3. Step 3: Cross multiply
    103,280.80x = 154,921.20 × 96,282.40
  4. Step 4: Simplify right side
    103,280.80x = 14,916,184,946.88
  5. Step 5: Solve for x
    x = 14,916,184,946.88/103,280.80
  6. Step 6: Final answer
    x = 144,423.60

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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.