Home / 132,710.05-183,138.92-72,280.50

Finding the Fourth Proportional to 132,710.05, 183,138.92 and 72,280.50

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Solution

The fourth proportional to 132,710.05, 183,138.92 and 72,280.50 is: 99,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,710.05 : 183,138.92 = 72,280.50 : x
  2. Step 2: Convert to fraction form
    132,710.05/183,138.92 = 72,280.50/x
  3. Step 3: Cross multiply
    132,710.05x = 183,138.92 × 72,280.50
  4. Step 4: Simplify right side
    132,710.05x = 13,237,373,366.67
  5. Step 5: Solve for x
    x = 13,237,373,366.67/132,710.05
  6. Step 6: Final answer
    x = 99,746.58

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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.