Home / 131,575.93-181,575.81-72,641.24

Finding the Fourth Proportional to 131,575.93, 181,575.81 and 72,641.24

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Solution

The fourth proportional to 131,575.93, 181,575.81 and 72,641.24 is: 100,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,575.93 : 181,575.81 = 72,641.24 : x
  2. Step 2: Convert to fraction form
    131,575.93/181,575.81 = 72,641.24/x
  3. Step 3: Cross multiply
    131,575.93x = 181,575.81 × 72,641.24
  4. Step 4: Simplify right side
    131,575.93x = 13,189,890,721.32
  5. Step 5: Solve for x
    x = 13,189,890,721.32/131,575.93
  6. Step 6: Final answer
    x = 100,245.47

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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.