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Finding the Fourth Proportional to 119,998.80, 179,911.80 and 67,424.40

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Solution

The fourth proportional to 119,998.80, 179,911.80 and 67,424.40 is: 101,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,998.80 : 179,911.80 = 67,424.40 : x
  2. Step 2: Convert to fraction form
    119,998.80/179,911.80 = 67,424.40/x
  3. Step 3: Cross multiply
    119,998.80x = 179,911.80 × 67,424.40
  4. Step 4: Simplify right side
    119,998.80x = 12,130,445,167.92
  5. Step 5: Solve for x
    x = 12,130,445,167.92/119,998.80
  6. Step 6: Final answer
    x = 101,088.05

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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.