Home / 151,098.03-208,505.00-87,445.40

Finding the Fourth Proportional to 151,098.03, 208,505.00 and 87,445.40

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Solution

The fourth proportional to 151,098.03, 208,505.00 and 87,445.40 is: 120,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,098.03 : 208,505.00 = 87,445.40 : x
  2. Step 2: Convert to fraction form
    151,098.03/208,505.00 = 87,445.40/x
  3. Step 3: Cross multiply
    151,098.03x = 208,505.00 × 87,445.40
  4. Step 4: Simplify right side
    151,098.03x = 18,232,802,303.09
  5. Step 5: Solve for x
    x = 18,232,802,303.09/151,098.03
  6. Step 6: Final answer
    x = 120,668.70

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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.