Home / 120,547.17-180,796.05-45,641.48

Finding the Fourth Proportional to 120,547.17, 180,796.05 and 45,641.48

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Solution

The fourth proportional to 120,547.17, 180,796.05 and 45,641.48 is: 68,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,547.17 : 180,796.05 = 45,641.48 : x
  2. Step 2: Convert to fraction form
    120,547.17/180,796.05 = 45,641.48/x
  3. Step 3: Cross multiply
    120,547.17x = 180,796.05 × 45,641.48
  4. Step 4: Simplify right side
    120,547.17x = 8,251,798,396.17
  5. Step 5: Solve for x
    x = 8,251,798,396.17/120,547.17
  6. Step 6: Final answer
    x = 68,452.86

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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.