Home / 93,156.48-139,058.32-86,217.84

Finding the Fourth Proportional to 93,156.48, 139,058.32 and 86,217.84

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Solution

The fourth proportional to 93,156.48, 139,058.32 and 86,217.84 is: 128,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,156.48 : 139,058.32 = 86,217.84 : x
  2. Step 2: Convert to fraction form
    93,156.48/139,058.32 = 86,217.84/x
  3. Step 3: Cross multiply
    93,156.48x = 139,058.32 × 86,217.84
  4. Step 4: Simplify right side
    93,156.48x = 11,989,307,984.43
  5. Step 5: Solve for x
    x = 11,989,307,984.43/93,156.48
  6. Step 6: Final answer
    x = 128,700.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.