Home / 146,043.12-201,539.64-78,975.12

Finding the Fourth Proportional to 146,043.12, 201,539.64 and 78,975.12

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Solution

The fourth proportional to 146,043.12, 201,539.64 and 78,975.12 is: 108,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,043.12 : 201,539.64 = 78,975.12 : x
  2. Step 2: Convert to fraction form
    146,043.12/201,539.64 = 78,975.12/x
  3. Step 3: Cross multiply
    146,043.12x = 201,539.64 × 78,975.12
  4. Step 4: Simplify right side
    146,043.12x = 15,916,617,253.76
  5. Step 5: Solve for x
    x = 15,916,617,253.76/146,043.12
  6. Step 6: Final answer
    x = 108,985.74

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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.