Home / 198,126.10-297,178.70-64,988.84

Finding the Fourth Proportional to 198,126.10, 297,178.70 and 64,988.84

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Solution

The fourth proportional to 198,126.10, 297,178.70 and 64,988.84 is: 97,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,126.10 : 297,178.70 = 64,988.84 : x
  2. Step 2: Convert to fraction form
    198,126.10/297,178.70 = 64,988.84/x
  3. Step 3: Cross multiply
    198,126.10x = 297,178.70 × 64,988.84
  4. Step 4: Simplify right side
    198,126.10x = 19,313,298,985.71
  5. Step 5: Solve for x
    x = 19,313,298,985.71/198,126.10
  6. Step 6: Final answer
    x = 97,479.83

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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.