Home / 127,492.02-191,236.80-77,586.30

Finding the Fourth Proportional to 127,492.02, 191,236.80 and 77,586.30

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Solution

The fourth proportional to 127,492.02, 191,236.80 and 77,586.30 is: 116,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,492.02 : 191,236.80 = 77,586.30 : x
  2. Step 2: Convert to fraction form
    127,492.02/191,236.80 = 77,586.30/x
  3. Step 3: Cross multiply
    127,492.02x = 191,236.80 × 77,586.30
  4. Step 4: Simplify right side
    127,492.02x = 14,837,355,735.84
  5. Step 5: Solve for x
    x = 14,837,355,735.84/127,492.02
  6. Step 6: Final answer
    x = 116,378.70

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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.