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Finding the Fourth Proportional to 79,658.90, 119,315.55 and 70,903.70

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Solution

The fourth proportional to 79,658.90, 119,315.55 and 70,903.70 is: 106,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658.90 : 119,315.55 = 70,903.70 : x
  2. Step 2: Convert to fraction form
    79,658.90/119,315.55 = 70,903.70/x
  3. Step 3: Cross multiply
    79,658.90x = 119,315.55 × 70,903.70
  4. Step 4: Simplify right side
    79,658.90x = 8,459,913,962.54
  5. Step 5: Solve for x
    x = 8,459,913,962.54/79,658.90
  6. Step 6: Final answer
    x = 106,201.74

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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.