Home / 191,574.64-287,362.02-79,131.27

Finding the Fourth Proportional to 191,574.64, 287,362.02 and 79,131.27

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Solution

The fourth proportional to 191,574.64, 287,362.02 and 79,131.27 is: 118,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,574.64 : 287,362.02 = 79,131.27 : x
  2. Step 2: Convert to fraction form
    191,574.64/287,362.02 = 79,131.27/x
  3. Step 3: Cross multiply
    191,574.64x = 287,362.02 × 79,131.27
  4. Step 4: Simplify right side
    191,574.64x = 22,739,321,592.37
  5. Step 5: Solve for x
    x = 22,739,321,592.37/191,574.64
  6. Step 6: Final answer
    x = 118,696.93

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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.