Home / 105,701.42-145,877.16-57,964.07

Finding the Fourth Proportional to 105,701.42, 145,877.16 and 57,964.07

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Solution

The fourth proportional to 105,701.42, 145,877.16 and 57,964.07 is: 79,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,701.42 : 145,877.16 = 57,964.07 : x
  2. Step 2: Convert to fraction form
    105,701.42/145,877.16 = 57,964.07/x
  3. Step 3: Cross multiply
    105,701.42x = 145,877.16 × 57,964.07
  4. Step 4: Simplify right side
    105,701.42x = 8,455,633,913.64
  5. Step 5: Solve for x
    x = 8,455,633,913.64/105,701.42
  6. Step 6: Final answer
    x = 79,995.46

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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.