Home / 105,590.68-158,275.10-38,988.36

Finding the Fourth Proportional to 105,590.68, 158,275.10 and 38,988.36

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Solution

The fourth proportional to 105,590.68, 158,275.10 and 38,988.36 is: 58,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,590.68 : 158,275.10 = 38,988.36 : x
  2. Step 2: Convert to fraction form
    105,590.68/158,275.10 = 38,988.36/x
  3. Step 3: Cross multiply
    105,590.68x = 158,275.10 × 38,988.36
  4. Step 4: Simplify right side
    105,590.68x = 6,170,886,577.84
  5. Step 5: Solve for x
    x = 6,170,886,577.84/105,590.68
  6. Step 6: Final answer
    x = 58,441.58

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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.