Home / 105,364.80-158,001.12-31,475.52

Finding the Fourth Proportional to 105,364.80, 158,001.12 and 31,475.52

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Solution

The fourth proportional to 105,364.80, 158,001.12 and 31,475.52 is: 47,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.80 : 158,001.12 = 31,475.52 : x
  2. Step 2: Convert to fraction form
    105,364.80/158,001.12 = 31,475.52/x
  3. Step 3: Cross multiply
    105,364.80x = 158,001.12 × 31,475.52
  4. Step 4: Simplify right side
    105,364.80x = 4,973,167,412.58
  5. Step 5: Solve for x
    x = 4,973,167,412.58/105,364.80
  6. Step 6: Final answer
    x = 47,199.51

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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.