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Finding the Fourth Proportional to 144,342.67, 216,557.75 and 65,435.71

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Solution

The fourth proportional to 144,342.67, 216,557.75 and 65,435.71 is: 98,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,342.67 : 216,557.75 = 65,435.71 : x
  2. Step 2: Convert to fraction form
    144,342.67/216,557.75 = 65,435.71/x
  3. Step 3: Cross multiply
    144,342.67x = 216,557.75 × 65,435.71
  4. Step 4: Simplify right side
    144,342.67x = 14,170,609,800.07
  5. Step 5: Solve for x
    x = 14,170,609,800.07/144,342.67
  6. Step 6: Final answer
    x = 98,173.39

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1.5x scale

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.