Home / 105,991.13-158,925.65-42,841.51

Finding the Fourth Proportional to 105,991.13, 158,925.65 and 42,841.51

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Solution

The fourth proportional to 105,991.13, 158,925.65 and 42,841.51 is: 64,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,991.13 : 158,925.65 = 42,841.51 : x
  2. Step 2: Convert to fraction form
    105,991.13/158,925.65 = 42,841.51/x
  3. Step 3: Cross multiply
    105,991.13x = 158,925.65 × 42,841.51
  4. Step 4: Simplify right side
    105,991.13x = 6,808,614,212.21
  5. Step 5: Solve for x
    x = 6,808,614,212.21/105,991.13
  6. Step 6: Final answer
    x = 64,237.58

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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.