Home / 105,438.18-158,055.67-38,841.91

Finding the Fourth Proportional to 105,438.18, 158,055.67 and 38,841.91

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Solution

The fourth proportional to 105,438.18, 158,055.67 and 38,841.91 is: 58,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,438.18 : 158,055.67 = 38,841.91 : x
  2. Step 2: Convert to fraction form
    105,438.18/158,055.67 = 38,841.91/x
  3. Step 3: Cross multiply
    105,438.18x = 158,055.67 × 38,841.91
  4. Step 4: Simplify right side
    105,438.18x = 6,139,184,109.13
  5. Step 5: Solve for x
    x = 6,139,184,109.13/105,438.18
  6. Step 6: Final answer
    x = 58,225.44

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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.