Home / 345,192.12-517,775.90-120,551.67

Finding the Fourth Proportional to 345,192.12, 517,775.90 and 120,551.67

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Solution

The fourth proportional to 345,192.12, 517,775.90 and 120,551.67 is: 180,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,192.12 : 517,775.90 = 120,551.67 : x
  2. Step 2: Convert to fraction form
    345,192.12/517,775.90 = 120,551.67/x
  3. Step 3: Cross multiply
    345,192.12x = 517,775.90 × 120,551.67
  4. Step 4: Simplify right side
    345,192.12x = 62,418,748,827.99
  5. Step 5: Solve for x
    x = 62,418,748,827.99/345,192.12
  6. Step 6: Final answer
    x = 180,823.21

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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.