Home / 72,156.02-108,237.11-19,565.51

Finding the Fourth Proportional to 72,156.02, 108,237.11 and 19,565.51

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Solution

The fourth proportional to 72,156.02, 108,237.11 and 19,565.51 is: 29,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,156.02 : 108,237.11 = 19,565.51 : x
  2. Step 2: Convert to fraction form
    72,156.02/108,237.11 = 19,565.51/x
  3. Step 3: Cross multiply
    72,156.02x = 108,237.11 × 19,565.51
  4. Step 4: Simplify right side
    72,156.02x = 2,117,713,619.06
  5. Step 5: Solve for x
    x = 2,117,713,619.06/72,156.02
  6. Step 6: Final answer
    x = 29,349.09

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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.