Home / 132,420.51-182,743.91-71,995.22

Finding the Fourth Proportional to 132,420.51, 182,743.91 and 71,995.22

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Solution

The fourth proportional to 132,420.51, 182,743.91 and 71,995.22 is: 99,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,420.51 : 182,743.91 = 71,995.22 : x
  2. Step 2: Convert to fraction form
    132,420.51/182,743.91 = 71,995.22/x
  3. Step 3: Cross multiply
    132,420.51x = 182,743.91 × 71,995.22
  4. Step 4: Simplify right side
    132,420.51x = 13,156,688,004.11
  5. Step 5: Solve for x
    x = 13,156,688,004.11/132,420.51
  6. Step 6: Final answer
    x = 99,355.36

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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.