Home / 112,426.28-155,146.36-61,437.88

Finding the Fourth Proportional to 112,426.28, 155,146.36 and 61,437.88

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Solution

The fourth proportional to 112,426.28, 155,146.36 and 61,437.88 is: 84,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,426.28 : 155,146.36 = 61,437.88 : x
  2. Step 2: Convert to fraction form
    112,426.28/155,146.36 = 61,437.88/x
  3. Step 3: Cross multiply
    112,426.28x = 155,146.36 × 61,437.88
  4. Step 4: Simplify right side
    112,426.28x = 9,531,863,448.12
  5. Step 5: Solve for x
    x = 9,531,863,448.12/112,426.28
  6. Step 6: Final answer
    x = 84,783.23

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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.