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Finding the Fourth Proportional to 166,384.80, 249,733.80 and 87,555.60

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Solution

The fourth proportional to 166,384.80, 249,733.80 and 87,555.60 is: 131,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,384.80 : 249,733.80 = 87,555.60 : x
  2. Step 2: Convert to fraction form
    166,384.80/249,733.80 = 87,555.60/x
  3. Step 3: Cross multiply
    166,384.80x = 249,733.80 × 87,555.60
  4. Step 4: Simplify right side
    166,384.80x = 21,865,592,699.28
  5. Step 5: Solve for x
    x = 21,865,592,699.28/166,384.80
  6. Step 6: Final answer
    x = 131,415.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.