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Finding the Fourth Proportional to 166,465.92, 249,690.96 and 77,688.48

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Solution

The fourth proportional to 166,465.92, 249,690.96 and 77,688.48 is: 116,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,465.92 : 249,690.96 = 77,688.48 : x
  2. Step 2: Convert to fraction form
    166,465.92/249,690.96 = 77,688.48/x
  3. Step 3: Cross multiply
    166,465.92x = 249,690.96 × 77,688.48
  4. Step 4: Simplify right side
    166,465.92x = 19,398,111,152.14
  5. Step 5: Solve for x
    x = 19,398,111,152.14/166,465.92
  6. Step 6: Final answer
    x = 116,529.02

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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.