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Finding the Fourth Proportional to 160,377, 221,065.29 and 126,331.59

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Solution

The fourth proportional to 160,377, 221,065.29 and 126,331.59 is: 174,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,377 : 221,065.29 = 126,331.59 : x
  2. Step 2: Convert to fraction form
    160,377/221,065.29 = 126,331.59/x
  3. Step 3: Cross multiply
    160,377x = 221,065.29 × 126,331.59
  4. Step 4: Simplify right side
    160,377x = 27,927,529,579.51
  5. Step 5: Solve for x
    x = 27,927,529,579.51/160,377
  6. Step 6: Final answer
    x = 174,136.75

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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.