Home / 156,290.49-215,681.06-84,669.88

Finding the Fourth Proportional to 156,290.49, 215,681.06 and 84,669.88

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Solution

The fourth proportional to 156,290.49, 215,681.06 and 84,669.88 is: 116,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,290.49 : 215,681.06 = 84,669.88 : x
  2. Step 2: Convert to fraction form
    156,290.49/215,681.06 = 84,669.88/x
  3. Step 3: Cross multiply
    156,290.49x = 215,681.06 × 84,669.88
  4. Step 4: Simplify right side
    156,290.49x = 18,261,689,468.47
  5. Step 5: Solve for x
    x = 18,261,689,468.47/156,290.49
  6. Step 6: Final answer
    x = 116,844.53

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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.