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Finding the Fourth Proportional to 157,247.58, 216,987.99 and 89,267.42

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Solution

The fourth proportional to 157,247.58, 216,987.99 and 89,267.42 is: 123,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,247.58 : 216,987.99 = 89,267.42 : x
  2. Step 2: Convert to fraction form
    157,247.58/216,987.99 = 89,267.42/x
  3. Step 3: Cross multiply
    157,247.58x = 216,987.99 × 89,267.42
  4. Step 4: Simplify right side
    157,247.58x = 19,369,957,276.51
  5. Step 5: Solve for x
    x = 19,369,957,276.51/157,247.58
  6. Step 6: Final answer
    x = 123,181.28

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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.