Home / 402,037.54-603,143.79-121,547.50

Finding the Fourth Proportional to 402,037.54, 603,143.79 and 121,547.50

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Solution

The fourth proportional to 402,037.54, 603,143.79 and 121,547.50 is: 182,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,037.54 : 603,143.79 = 121,547.50 : x
  2. Step 2: Convert to fraction form
    402,037.54/603,143.79 = 121,547.50/x
  3. Step 3: Cross multiply
    402,037.54x = 603,143.79 × 121,547.50
  4. Step 4: Simplify right side
    402,037.54x = 73,310,619,815.03
  5. Step 5: Solve for x
    x = 73,310,619,815.03/402,037.54
  6. Step 6: Final answer
    x = 182,347.70

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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.