Home / 156,004.40-234,006.60-77,102.30

Finding the Fourth Proportional to 156,004.40, 234,006.60 and 77,102.30

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Solution

The fourth proportional to 156,004.40, 234,006.60 and 77,102.30 is: 115,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,004.40 : 234,006.60 = 77,102.30 : x
  2. Step 2: Convert to fraction form
    156,004.40/234,006.60 = 77,102.30/x
  3. Step 3: Cross multiply
    156,004.40x = 234,006.60 × 77,102.30
  4. Step 4: Simplify right side
    156,004.40x = 18,042,447,075.18
  5. Step 5: Solve for x
    x = 18,042,447,075.18/156,004.40
  6. Step 6: Final answer
    x = 115,653.45

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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.