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Finding the Fourth Proportional to 99,320.40, 148,980.60 and 29,206.80

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Solution

The fourth proportional to 99,320.40, 148,980.60 and 29,206.80 is: 43,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,320.40 : 148,980.60 = 29,206.80 : x
  2. Step 2: Convert to fraction form
    99,320.40/148,980.60 = 29,206.80/x
  3. Step 3: Cross multiply
    99,320.40x = 148,980.60 × 29,206.80
  4. Step 4: Simplify right side
    99,320.40x = 4,351,246,588.08
  5. Step 5: Solve for x
    x = 4,351,246,588.08/99,320.40
  6. Step 6: Final answer
    x = 43,810.20

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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.