Home / 133,109.77-183,698.92-72,686.02

Finding the Fourth Proportional to 133,109.77, 183,698.92 and 72,686.02

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Solution

The fourth proportional to 133,109.77, 183,698.92 and 72,686.02 is: 100,310.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.77 : 183,698.92 = 72,686.02 : x
  2. Step 2: Convert to fraction form
    133,109.77/183,698.92 = 72,686.02/x
  3. Step 3: Cross multiply
    133,109.77x = 183,698.92 × 72,686.02
  4. Step 4: Simplify right side
    133,109.77x = 13,352,343,373.10
  5. Step 5: Solve for x
    x = 13,352,343,373.10/133,109.77
  6. Step 6: Final answer
    x = 100,310.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.