Home / 132,783.90-183,228.66-78,334.92

Finding the Fourth Proportional to 132,783.90, 183,228.66 and 78,334.92

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Solution

The fourth proportional to 132,783.90, 183,228.66 and 78,334.92 is: 108,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,783.90 : 183,228.66 = 78,334.92 : x
  2. Step 2: Convert to fraction form
    132,783.90/183,228.66 = 78,334.92/x
  3. Step 3: Cross multiply
    132,783.90x = 183,228.66 × 78,334.92
  4. Step 4: Simplify right side
    132,783.90x = 14,353,202,422.81
  5. Step 5: Solve for x
    x = 14,353,202,422.81/132,783.90
  6. Step 6: Final answer
    x = 108,094.45

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1.5x scale

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.