Home / 189,989.50-262,290.15-142,225.66

Finding the Fourth Proportional to 189,989.50, 262,290.15 and 142,225.66

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Solution

The fourth proportional to 189,989.50, 262,290.15 and 142,225.66 is: 196,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,989.50 : 262,290.15 = 142,225.66 : x
  2. Step 2: Convert to fraction form
    189,989.50/262,290.15 = 142,225.66/x
  3. Step 3: Cross multiply
    189,989.50x = 262,290.15 × 142,225.66
  4. Step 4: Simplify right side
    189,989.50x = 37,304,389,695.25
  5. Step 5: Solve for x
    x = 37,304,389,695.25/189,989.50
  6. Step 6: Final answer
    x = 196,349.74

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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.