Home / 133,079.40-183,590.64-90,043.56

Finding the Fourth Proportional to 133,079.40, 183,590.64 and 90,043.56

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Solution

The fourth proportional to 133,079.40, 183,590.64 and 90,043.56 is: 124,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,079.40 : 183,590.64 = 90,043.56 : x
  2. Step 2: Convert to fraction form
    133,079.40/183,590.64 = 90,043.56/x
  3. Step 3: Cross multiply
    133,079.40x = 183,590.64 × 90,043.56
  4. Step 4: Simplify right side
    133,079.40x = 16,531,154,808.28
  5. Step 5: Solve for x
    x = 16,531,154,808.28/133,079.40
  6. Step 6: Final answer
    x = 124,220.24

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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.