Home / 132,712.94-183,148.06-72,285.40

Finding the Fourth Proportional to 132,712.94, 183,148.06 and 72,285.40

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Solution

The fourth proportional to 132,712.94, 183,148.06 and 72,285.40 is: 99,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,712.94 : 183,148.06 = 72,285.40 : x
  2. Step 2: Convert to fraction form
    132,712.94/183,148.06 = 72,285.40/x
  3. Step 3: Cross multiply
    132,712.94x = 183,148.06 × 72,285.40
  4. Step 4: Simplify right side
    132,712.94x = 13,238,930,776.32
  5. Step 5: Solve for x
    x = 13,238,930,776.32/132,712.94
  6. Step 6: Final answer
    x = 99,756.14

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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.