Home / 191,973.36-287,689.44-90,663.36

Finding the Fourth Proportional to 191,973.36, 287,689.44 and 90,663.36

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Solution

The fourth proportional to 191,973.36, 287,689.44 and 90,663.36 is: 135,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,973.36 : 287,689.44 = 90,663.36 : x
  2. Step 2: Convert to fraction form
    191,973.36/287,689.44 = 90,663.36/x
  3. Step 3: Cross multiply
    191,973.36x = 287,689.44 × 90,663.36
  4. Step 4: Simplify right side
    191,973.36x = 26,082,891,266.92
  5. Step 5: Solve for x
    x = 26,082,891,266.92/191,973.36
  6. Step 6: Final answer
    x = 135,867.24

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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.