Home / 105,421.16-158,194.12-38,907.60

Finding the Fourth Proportional to 105,421.16, 158,194.12 and 38,907.60

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Solution

The fourth proportional to 105,421.16, 158,194.12 and 38,907.60 is: 58,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,421.16 : 158,194.12 = 38,907.60 : x
  2. Step 2: Convert to fraction form
    105,421.16/158,194.12 = 38,907.60/x
  3. Step 3: Cross multiply
    105,421.16x = 158,194.12 × 38,907.60
  4. Step 4: Simplify right side
    105,421.16x = 6,154,953,543.31
  5. Step 5: Solve for x
    x = 6,154,953,543.31/105,421.16
  6. Step 6: Final answer
    x = 58,384.42

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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.