Home / 112,547.24-168,820.85-45,987.30

Finding the Fourth Proportional to 112,547.24, 168,820.85 and 45,987.30

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Solution

The fourth proportional to 112,547.24, 168,820.85 and 45,987.30 is: 68,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,547.24 : 168,820.85 = 45,987.30 : x
  2. Step 2: Convert to fraction form
    112,547.24/168,820.85 = 45,987.30/x
  3. Step 3: Cross multiply
    112,547.24x = 168,820.85 × 45,987.30
  4. Step 4: Simplify right side
    112,547.24x = 7,763,614,845.27
  5. Step 5: Solve for x
    x = 7,763,614,845.27/112,547.24
  6. Step 6: Final answer
    x = 68,980.95

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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.