Home / 345,188.12-517,769.90-120,547.67

Finding the Fourth Proportional to 345,188.12, 517,769.90 and 120,547.67

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Solution

The fourth proportional to 345,188.12, 517,769.90 and 120,547.67 is: 180,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,188.12 : 517,769.90 = 120,547.67 : x
  2. Step 2: Convert to fraction form
    345,188.12/517,769.90 = 120,547.67/x
  3. Step 3: Cross multiply
    345,188.12x = 517,769.90 × 120,547.67
  4. Step 4: Simplify right side
    345,188.12x = 62,415,954,438.39
  5. Step 5: Solve for x
    x = 62,415,954,438.39/345,188.12
  6. Step 6: Final answer
    x = 180,817.21

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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.