Home / 116,439.42-160,592.40-78,187.44

Finding the Fourth Proportional to 116,439.42, 160,592.40 and 78,187.44

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Solution

The fourth proportional to 116,439.42, 160,592.40 and 78,187.44 is: 107,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,439.42 : 160,592.40 = 78,187.44 : x
  2. Step 2: Convert to fraction form
    116,439.42/160,592.40 = 78,187.44/x
  3. Step 3: Cross multiply
    116,439.42x = 160,592.40 × 78,187.44
  4. Step 4: Simplify right side
    116,439.42x = 12,556,308,639.46
  5. Step 5: Solve for x
    x = 12,556,308,639.46/116,439.42
  6. Step 6: Final answer
    x = 107,835.55

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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.