Home / 104,653.20-156,979.80-99,732.45

Finding the Fourth Proportional to 104,653.20, 156,979.80 and 99,732.45

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Solution

The fourth proportional to 104,653.20, 156,979.80 and 99,732.45 is: 149,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,653.20 : 156,979.80 = 99,732.45 : x
  2. Step 2: Convert to fraction form
    104,653.20/156,979.80 = 99,732.45/x
  3. Step 3: Cross multiply
    104,653.20x = 156,979.80 × 99,732.45
  4. Step 4: Simplify right side
    104,653.20x = 15,655,980,054.51
  5. Step 5: Solve for x
    x = 15,655,980,054.51/104,653.20
  6. Step 6: Final answer
    x = 149,598.68

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1.5x scale

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.