Home / 145,329.68-200,552.28-81,666.56

Finding the Fourth Proportional to 145,329.68, 200,552.28 and 81,666.56

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Solution

The fourth proportional to 145,329.68, 200,552.28 and 81,666.56 is: 112,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,329.68 : 200,552.28 = 81,666.56 : x
  2. Step 2: Convert to fraction form
    145,329.68/200,552.28 = 81,666.56/x
  3. Step 3: Cross multiply
    145,329.68x = 200,552.28 × 81,666.56
  4. Step 4: Simplify right side
    145,329.68x = 16,378,414,807.76
  5. Step 5: Solve for x
    x = 16,378,414,807.76/145,329.68
  6. Step 6: Final answer
    x = 112,698.35

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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.