Home / 268,106.34-402,159.16-68,426.72

Finding the Fourth Proportional to 268,106.34, 402,159.16 and 68,426.72

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Solution

The fourth proportional to 268,106.34, 402,159.16 and 68,426.72 is: 102,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,106.34 : 402,159.16 = 68,426.72 : x
  2. Step 2: Convert to fraction form
    268,106.34/402,159.16 = 68,426.72/x
  3. Step 3: Cross multiply
    268,106.34x = 402,159.16 × 68,426.72
  4. Step 4: Simplify right side
    268,106.34x = 27,518,432,236.76
  5. Step 5: Solve for x
    x = 27,518,432,236.76/268,106.34
  6. Step 6: Final answer
    x = 102,639.99

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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.