Home / 131,133.64-180,820.86-88,618.36

Finding the Fourth Proportional to 131,133.64, 180,820.86 and 88,618.36

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Solution

The fourth proportional to 131,133.64, 180,820.86 and 88,618.36 is: 122,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,133.64 : 180,820.86 = 88,618.36 : x
  2. Step 2: Convert to fraction form
    131,133.64/180,820.86 = 88,618.36/x
  3. Step 3: Cross multiply
    131,133.64x = 180,820.86 × 88,618.36
  4. Step 4: Simplify right side
    131,133.64x = 16,024,048,066.99
  5. Step 5: Solve for x
    x = 16,024,048,066.99/131,133.64
  6. Step 6: Final answer
    x = 122,196.32

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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.