Home / 112,318.40-168,399.56-42,178.88

Finding the Fourth Proportional to 112,318.40, 168,399.56 and 42,178.88

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Solution

The fourth proportional to 112,318.40, 168,399.56 and 42,178.88 is: 63,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.40 : 168,399.56 = 42,178.88 : x
  2. Step 2: Convert to fraction form
    112,318.40/168,399.56 = 42,178.88/x
  3. Step 3: Cross multiply
    112,318.40x = 168,399.56 × 42,178.88
  4. Step 4: Simplify right side
    112,318.40x = 7,102,904,833.29
  5. Step 5: Solve for x
    x = 7,102,904,833.29/112,318.40
  6. Step 6: Final answer
    x = 63,239.01

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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.