Home / 115,031.63-158,743.29-64,043.04

Finding the Fourth Proportional to 115,031.63, 158,743.29 and 64,043.04

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Solution

The fourth proportional to 115,031.63, 158,743.29 and 64,043.04 is: 88,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,031.63 : 158,743.29 = 64,043.04 : x
  2. Step 2: Convert to fraction form
    115,031.63/158,743.29 = 64,043.04/x
  3. Step 3: Cross multiply
    115,031.63x = 158,743.29 × 64,043.04
  4. Step 4: Simplify right side
    115,031.63x = 10,166,402,871.20
  5. Step 5: Solve for x
    x = 10,166,402,871.20/115,031.63
  6. Step 6: Final answer
    x = 88,379.20

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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.