Home / 117,136.60-161,646.54-63,421.18

Finding the Fourth Proportional to 117,136.60, 161,646.54 and 63,421.18

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Solution

The fourth proportional to 117,136.60, 161,646.54 and 63,421.18 is: 87,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.60 : 161,646.54 = 63,421.18 : x
  2. Step 2: Convert to fraction form
    117,136.60/161,646.54 = 63,421.18/x
  3. Step 3: Cross multiply
    117,136.60x = 161,646.54 × 63,421.18
  4. Step 4: Simplify right side
    117,136.60x = 10,251,814,309.72
  5. Step 5: Solve for x
    x = 10,251,814,309.72/117,136.60
  6. Step 6: Final answer
    x = 87,520.16

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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.