Home / 131,088.64-180,875.16-76,630.23

Finding the Fourth Proportional to 131,088.64, 180,875.16 and 76,630.23

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Solution

The fourth proportional to 131,088.64, 180,875.16 and 76,630.23 is: 105,733.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,088.64 : 180,875.16 = 76,630.23 : x
  2. Step 2: Convert to fraction form
    131,088.64/180,875.16 = 76,630.23/x
  3. Step 3: Cross multiply
    131,088.64x = 180,875.16 × 76,630.23
  4. Step 4: Simplify right side
    131,088.64x = 13,860,505,112.09
  5. Step 5: Solve for x
    x = 13,860,505,112.09/131,088.64
  6. Step 6: Final answer
    x = 105,733.84

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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.