Home / 137,256.36-189,531.98-86,353.93

Finding the Fourth Proportional to 137,256.36, 189,531.98 and 86,353.93

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Solution

The fourth proportional to 137,256.36, 189,531.98 and 86,353.93 is: 119,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,256.36 : 189,531.98 = 86,353.93 : x
  2. Step 2: Convert to fraction form
    137,256.36/189,531.98 = 86,353.93/x
  3. Step 3: Cross multiply
    137,256.36x = 189,531.98 × 86,353.93
  4. Step 4: Simplify right side
    137,256.36x = 16,366,832,141.85
  5. Step 5: Solve for x
    x = 16,366,832,141.85/137,256.36
  6. Step 6: Final answer
    x = 119,242.80

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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.