Home / 156,987.12-235,488.83-51,814.30

Finding the Fourth Proportional to 156,987.12, 235,488.83 and 51,814.30

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Solution

The fourth proportional to 156,987.12, 235,488.83 and 51,814.30 is: 77,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.12 : 235,488.83 = 51,814.30 : x
  2. Step 2: Convert to fraction form
    156,987.12/235,488.83 = 51,814.30/x
  3. Step 3: Cross multiply
    156,987.12x = 235,488.83 × 51,814.30
  4. Step 4: Simplify right side
    156,987.12x = 12,201,688,884.27
  5. Step 5: Solve for x
    x = 12,201,688,884.27/156,987.12
  6. Step 6: Final answer
    x = 77,724.14

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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.