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Finding the Fourth Proportional to 114,681.60, 172,022.40 and 79,252.20

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Solution

The fourth proportional to 114,681.60, 172,022.40 and 79,252.20 is: 118,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,681.60 : 172,022.40 = 79,252.20 : x
  2. Step 2: Convert to fraction form
    114,681.60/172,022.40 = 79,252.20/x
  3. Step 3: Cross multiply
    114,681.60x = 172,022.40 × 79,252.20
  4. Step 4: Simplify right side
    114,681.60x = 13,633,153,649.28
  5. Step 5: Solve for x
    x = 13,633,153,649.28/114,681.60
  6. Step 6: Final answer
    x = 118,878.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.