Home / 93,436.43-128,897.43-61,156.85

Finding the Fourth Proportional to 93,436.43, 128,897.43 and 61,156.85

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Solution

The fourth proportional to 93,436.43, 128,897.43 and 61,156.85 is: 84,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,436.43 : 128,897.43 = 61,156.85 : x
  2. Step 2: Convert to fraction form
    93,436.43/128,897.43 = 61,156.85/x
  3. Step 3: Cross multiply
    93,436.43x = 128,897.43 × 61,156.85
  4. Step 4: Simplify right side
    93,436.43x = 7,882,960,791.90
  5. Step 5: Solve for x
    x = 7,882,960,791.90/93,436.43
  6. Step 6: Final answer
    x = 84,367.10

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1.5x scale

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.