Home / 156,984.30-235,476.45-78,252.30

Finding the Fourth Proportional to 156,984.30, 235,476.45 and 78,252.30

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Solution

The fourth proportional to 156,984.30, 235,476.45 and 78,252.30 is: 117,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.30 : 235,476.45 = 78,252.30 : x
  2. Step 2: Convert to fraction form
    156,984.30/235,476.45 = 78,252.30/x
  3. Step 3: Cross multiply
    156,984.30x = 235,476.45 × 78,252.30
  4. Step 4: Simplify right side
    156,984.30x = 18,426,573,808.34
  5. Step 5: Solve for x
    x = 18,426,573,808.34/156,984.30
  6. Step 6: Final answer
    x = 117,378.45

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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.