Home / 190,461.60-285,695.22-72,101.16

Finding the Fourth Proportional to 190,461.60, 285,695.22 and 72,101.16

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Solution

The fourth proportional to 190,461.60, 285,695.22 and 72,101.16 is: 108,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,461.60 : 285,695.22 = 72,101.16 : x
  2. Step 2: Convert to fraction form
    190,461.60/285,695.22 = 72,101.16/x
  3. Step 3: Cross multiply
    190,461.60x = 285,695.22 × 72,101.16
  4. Step 4: Simplify right side
    190,461.60x = 20,598,956,768.46
  5. Step 5: Solve for x
    x = 20,598,956,768.46/190,461.60
  6. Step 6: Final answer
    x = 108,152.81

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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.