Home / 133,309.86-183,987.63-76,710.30

Finding the Fourth Proportional to 133,309.86, 183,987.63 and 76,710.30

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Solution

The fourth proportional to 133,309.86, 183,987.63 and 76,710.30 is: 105,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,309.86 : 183,987.63 = 76,710.30 : x
  2. Step 2: Convert to fraction form
    133,309.86/183,987.63 = 76,710.30/x
  3. Step 3: Cross multiply
    133,309.86x = 183,987.63 × 76,710.30
  4. Step 4: Simplify right side
    133,309.86x = 14,113,746,293.59
  5. Step 5: Solve for x
    x = 14,113,746,293.59/133,309.86
  6. Step 6: Final answer
    x = 105,871.74

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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.