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Finding the Fourth Proportional to 157,006.83, 216,664.81 and 89,030.01

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Solution

The fourth proportional to 157,006.83, 216,664.81 and 89,030.01 is: 122,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,006.83 : 216,664.81 = 89,030.01 : x
  2. Step 2: Convert to fraction form
    157,006.83/216,664.81 = 89,030.01/x
  3. Step 3: Cross multiply
    157,006.83x = 216,664.81 × 89,030.01
  4. Step 4: Simplify right side
    157,006.83x = 19,289,670,790.87
  5. Step 5: Solve for x
    x = 19,289,670,790.87/157,006.83
  6. Step 6: Final answer
    x = 122,858.80

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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.