Home / 133,038.37-183,535.36-81,357.74

Finding the Fourth Proportional to 133,038.37, 183,535.36 and 81,357.74

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Solution

The fourth proportional to 133,038.37, 183,535.36 and 81,357.74 is: 112,238.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,038.37 : 183,535.36 = 81,357.74 : x
  2. Step 2: Convert to fraction form
    133,038.37/183,535.36 = 81,357.74/x
  3. Step 3: Cross multiply
    133,038.37x = 183,535.36 × 81,357.74
  4. Step 4: Simplify right side
    133,038.37x = 14,932,021,182.01
  5. Step 5: Solve for x
    x = 14,932,021,182.01/133,038.37
  6. Step 6: Final answer
    x = 112,238.46

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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.