Home / 191,975.18-287,738.51-144,437.51

Finding the Fourth Proportional to 191,975.18, 287,738.51 and 144,437.51

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Solution

The fourth proportional to 191,975.18, 287,738.51 and 144,437.51 is: 216,487.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,975.18 : 287,738.51 = 144,437.51 : x
  2. Step 2: Convert to fraction form
    191,975.18/287,738.51 = 144,437.51/x
  3. Step 3: Cross multiply
    191,975.18x = 287,738.51 × 144,437.51
  4. Step 4: Simplify right side
    191,975.18x = 41,560,231,754.63
  5. Step 5: Solve for x
    x = 41,560,231,754.63/191,975.18
  6. Step 6: Final answer
    x = 216,487.53

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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.