Home / 235,639.20-325,128.72-172,011.68

Finding the Fourth Proportional to 235,639.20, 325,128.72 and 172,011.68

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Solution

The fourth proportional to 235,639.20, 325,128.72 and 172,011.68 is: 237,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,639.20 : 325,128.72 = 172,011.68 : x
  2. Step 2: Convert to fraction form
    235,639.20/325,128.72 = 172,011.68/x
  3. Step 3: Cross multiply
    235,639.20x = 325,128.72 × 172,011.68
  4. Step 4: Simplify right side
    235,639.20x = 55,925,937,343.45
  5. Step 5: Solve for x
    x = 55,925,937,343.45/235,639.20
  6. Step 6: Final answer
    x = 237,337.16

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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.