Home / 156,287.07-234,441.14-77,380.11

Finding the Fourth Proportional to 156,287.07, 234,441.14 and 77,380.11

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Solution

The fourth proportional to 156,287.07, 234,441.14 and 77,380.11 is: 116,075.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,287.07 : 234,441.14 = 77,380.11 : x
  2. Step 2: Convert to fraction form
    156,287.07/234,441.14 = 77,380.11/x
  3. Step 3: Cross multiply
    156,287.07x = 234,441.14 × 77,380.11
  4. Step 4: Simplify right side
    156,287.07x = 18,141,080,814.82
  5. Step 5: Solve for x
    x = 18,141,080,814.82/156,287.07
  6. Step 6: Final answer
    x = 116,075.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.