Home / 156,739.38-235,120.23-77,774.10

Finding the Fourth Proportional to 156,739.38, 235,120.23 and 77,774.10

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Solution

The fourth proportional to 156,739.38, 235,120.23 and 77,774.10 is: 116,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.38 : 235,120.23 = 77,774.10 : x
  2. Step 2: Convert to fraction form
    156,739.38/235,120.23 = 77,774.10/x
  3. Step 3: Cross multiply
    156,739.38x = 235,120.23 × 77,774.10
  4. Step 4: Simplify right side
    156,739.38x = 18,286,264,280.04
  5. Step 5: Solve for x
    x = 18,286,264,280.04/156,739.38
  6. Step 6: Final answer
    x = 116,666.69

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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.