Home / 99,072.60-148,328.10-76,925.40

Finding the Fourth Proportional to 99,072.60, 148,328.10 and 76,925.40

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Solution

The fourth proportional to 99,072.60, 148,328.10 and 76,925.40 is: 115,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072.60 : 148,328.10 = 76,925.40 : x
  2. Step 2: Convert to fraction form
    99,072.60/148,328.10 = 76,925.40/x
  3. Step 3: Cross multiply
    99,072.60x = 148,328.10 × 76,925.40
  4. Step 4: Simplify right side
    99,072.60x = 11,410,198,423.74
  5. Step 5: Solve for x
    x = 11,410,198,423.74/99,072.60
  6. Step 6: Final answer
    x = 115,170.07

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1.5x scale

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.