Home / 132,477.42-182,865.78-78,762.16

Finding the Fourth Proportional to 132,477.42, 182,865.78 and 78,762.16

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Solution

The fourth proportional to 132,477.42, 182,865.78 and 78,762.16 is: 108,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,477.42 : 182,865.78 = 78,762.16 : x
  2. Step 2: Convert to fraction form
    132,477.42/182,865.78 = 78,762.16/x
  3. Step 3: Cross multiply
    132,477.42x = 182,865.78 × 78,762.16
  4. Step 4: Simplify right side
    132,477.42x = 14,402,903,822.88
  5. Step 5: Solve for x
    x = 14,402,903,822.88/132,477.42
  6. Step 6: Final answer
    x = 108,719.69

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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.