Home / 145,933.52-219,211.42-137,401.40

Finding the Fourth Proportional to 145,933.52, 219,211.42 and 137,401.40

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Solution

The fourth proportional to 145,933.52, 219,211.42 and 137,401.40 is: 206,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,933.52 : 219,211.42 = 137,401.40 : x
  2. Step 2: Convert to fraction form
    145,933.52/219,211.42 = 137,401.40/x
  3. Step 3: Cross multiply
    145,933.52x = 219,211.42 × 137,401.40
  4. Step 4: Simplify right side
    145,933.52x = 30,119,955,386.47
  5. Step 5: Solve for x
    x = 30,119,955,386.47/145,933.52
  6. Step 6: Final answer
    x = 206,395.05

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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.