Home / 142,136.92-196,219.02-111,455.92

Finding the Fourth Proportional to 142,136.92, 196,219.02 and 111,455.92

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Solution

The fourth proportional to 142,136.92, 196,219.02 and 111,455.92 is: 153,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,136.92 : 196,219.02 = 111,455.92 : x
  2. Step 2: Convert to fraction form
    142,136.92/196,219.02 = 111,455.92/x
  3. Step 3: Cross multiply
    142,136.92x = 196,219.02 × 111,455.92
  4. Step 4: Simplify right side
    142,136.92x = 21,869,771,395.60
  5. Step 5: Solve for x
    x = 21,869,771,395.60/142,136.92
  6. Step 6: Final answer
    x = 153,864.11

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1.5x scale

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.