Home / 132,851.90-183,334.10-72,421.21

Finding the Fourth Proportional to 132,851.90, 183,334.10 and 72,421.21

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Solution

The fourth proportional to 132,851.90, 183,334.10 and 72,421.21 is: 99,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,851.90 : 183,334.10 = 72,421.21 : x
  2. Step 2: Convert to fraction form
    132,851.90/183,334.10 = 72,421.21/x
  3. Step 3: Cross multiply
    132,851.90x = 183,334.10 × 72,421.21
  4. Step 4: Simplify right side
    132,851.90x = 13,277,276,439.59
  5. Step 5: Solve for x
    x = 13,277,276,439.59/132,851.90
  6. Step 6: Final answer
    x = 99,940.44

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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.