Home / 120,830.96-180,983.64-58,370

Finding the Fourth Proportional to 120,830.96, 180,983.64 and 58,370

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Solution

The fourth proportional to 120,830.96, 180,983.64 and 58,370 is: 87,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830.96 : 180,983.64 = 58,370 : x
  2. Step 2: Convert to fraction form
    120,830.96/180,983.64 = 58,370/x
  3. Step 3: Cross multiply
    120,830.96x = 180,983.64 × 58,370
  4. Step 4: Simplify right side
    120,830.96x = 10,564,015,066.80
  5. Step 5: Solve for x
    x = 10,564,015,066.80/120,830.96
  6. Step 6: Final answer
    x = 87,428.05

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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.