Home / 131,089.14-180,875.86-76,630.74

Finding the Fourth Proportional to 131,089.14, 180,875.86 and 76,630.74

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Solution

The fourth proportional to 131,089.14, 180,875.86 and 76,630.74 is: 105,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,089.14 : 180,875.86 = 76,630.74 : x
  2. Step 2: Convert to fraction form
    131,089.14/180,875.86 = 76,630.74/x
  3. Step 3: Cross multiply
    131,089.14x = 180,875.86 × 76,630.74
  4. Step 4: Simplify right side
    131,089.14x = 13,860,649,712.40
  5. Step 5: Solve for x
    x = 13,860,649,712.40/131,089.14
  6. Step 6: Final answer
    x = 105,734.54

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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.