Home / 131,712.21-181,763.07-71,282.92

Finding the Fourth Proportional to 131,712.21, 181,763.07 and 71,282.92

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Solution

The fourth proportional to 131,712.21, 181,763.07 and 71,282.92 is: 98,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,712.21 : 181,763.07 = 71,282.92 : x
  2. Step 2: Convert to fraction form
    131,712.21/181,763.07 = 71,282.92/x
  3. Step 3: Cross multiply
    131,712.21x = 181,763.07 × 71,282.92
  4. Step 4: Simplify right side
    131,712.21x = 12,956,602,397.82
  5. Step 5: Solve for x
    x = 12,956,602,397.82/131,712.21
  6. Step 6: Final answer
    x = 98,370.55

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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.