Home / 134,956.52-186,225.86-78,356.84

Finding the Fourth Proportional to 134,956.52, 186,225.86 and 78,356.84

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Solution

The fourth proportional to 134,956.52, 186,225.86 and 78,356.84 is: 108,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,956.52 : 186,225.86 = 78,356.84 : x
  2. Step 2: Convert to fraction form
    134,956.52/186,225.86 = 78,356.84/x
  3. Step 3: Cross multiply
    134,956.52x = 186,225.86 × 78,356.84
  4. Step 4: Simplify right side
    134,956.52x = 14,592,069,915.88
  5. Step 5: Solve for x
    x = 14,592,069,915.88/134,956.52
  6. Step 6: Final answer
    x = 108,124.23

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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.