Home / 156,972.52-216,627.78-89,917.48

Finding the Fourth Proportional to 156,972.52, 216,627.78 and 89,917.48

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Solution

The fourth proportional to 156,972.52, 216,627.78 and 89,917.48 is: 124,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.52 : 216,627.78 = 89,917.48 : x
  2. Step 2: Convert to fraction form
    156,972.52/216,627.78 = 89,917.48/x
  3. Step 3: Cross multiply
    156,972.52x = 216,627.78 × 89,917.48
  4. Step 4: Simplify right side
    156,972.52x = 19,478,624,075.59
  5. Step 5: Solve for x
    x = 19,478,624,075.59/156,972.52
  6. Step 6: Final answer
    x = 124,089.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.