Home / 133,055.90-183,617.10-90,688.42

Finding the Fourth Proportional to 133,055.90, 183,617.10 and 90,688.42

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Solution

The fourth proportional to 133,055.90, 183,617.10 and 90,688.42 is: 125,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.90 : 183,617.10 = 90,688.42 : x
  2. Step 2: Convert to fraction form
    133,055.90/183,617.10 = 90,688.42/x
  3. Step 3: Cross multiply
    133,055.90x = 183,617.10 × 90,688.42
  4. Step 4: Simplify right side
    133,055.90x = 16,651,944,683.98
  5. Step 5: Solve for x
    x = 16,651,944,683.98/133,055.90
  6. Step 6: Final answer
    x = 125,149.99

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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.