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Finding the Fourth Proportional to 99,803.60, 149,705.40 and 97,835.30

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Solution

The fourth proportional to 99,803.60, 149,705.40 and 97,835.30 is: 146,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,803.60 : 149,705.40 = 97,835.30 : x
  2. Step 2: Convert to fraction form
    99,803.60/149,705.40 = 97,835.30/x
  3. Step 3: Cross multiply
    99,803.60x = 149,705.40 × 97,835.30
  4. Step 4: Simplify right side
    99,803.60x = 14,646,472,720.62
  5. Step 5: Solve for x
    x = 14,646,472,720.62/99,803.60
  6. Step 6: Final answer
    x = 146,752.95

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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.