Home / 152,136.70-209,878.80-98,439.22

Finding the Fourth Proportional to 152,136.70, 209,878.80 and 98,439.22

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Solution

The fourth proportional to 152,136.70, 209,878.80 and 98,439.22 is: 135,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,136.70 : 209,878.80 = 98,439.22 : x
  2. Step 2: Convert to fraction form
    152,136.70/209,878.80 = 98,439.22/x
  3. Step 3: Cross multiply
    152,136.70x = 209,878.80 × 98,439.22
  4. Step 4: Simplify right side
    152,136.70x = 20,660,305,366.54
  5. Step 5: Solve for x
    x = 20,660,305,366.54/152,136.70
  6. Step 6: Final answer
    x = 135,800.93

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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.