Home / 107,264.04-147,972.90-78,538.44

Finding the Fourth Proportional to 107,264.04, 147,972.90 and 78,538.44

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Solution

The fourth proportional to 107,264.04, 147,972.90 and 78,538.44 is: 108,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,264.04 : 147,972.90 = 78,538.44 : x
  2. Step 2: Convert to fraction form
    107,264.04/147,972.90 = 78,538.44/x
  3. Step 3: Cross multiply
    107,264.04x = 147,972.90 × 78,538.44
  4. Step 4: Simplify right side
    107,264.04x = 11,621,560,728.28
  5. Step 5: Solve for x
    x = 11,621,560,728.28/107,264.04
  6. Step 6: Final answer
    x = 108,345.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.