Home / 142,487.04-213,683.76-52,509

Finding the Fourth Proportional to 142,487.04, 213,683.76 and 52,509

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Solution

The fourth proportional to 142,487.04, 213,683.76 and 52,509 is: 78,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,487.04 : 213,683.76 = 52,509 : x
  2. Step 2: Convert to fraction form
    142,487.04/213,683.76 = 52,509/x
  3. Step 3: Cross multiply
    142,487.04x = 213,683.76 × 52,509
  4. Step 4: Simplify right side
    142,487.04x = 11,220,320,553.84
  5. Step 5: Solve for x
    x = 11,220,320,553.84/142,487.04
  6. Step 6: Final answer
    x = 78,746.25

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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.