Home / 89,707.02-134,416.81-68,621.50

Finding the Fourth Proportional to 89,707.02, 134,416.81 and 68,621.50

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Solution

The fourth proportional to 89,707.02, 134,416.81 and 68,621.50 is: 102,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,707.02 : 134,416.81 = 68,621.50 : x
  2. Step 2: Convert to fraction form
    89,707.02/134,416.81 = 68,621.50/x
  3. Step 3: Cross multiply
    89,707.02x = 134,416.81 × 68,621.50
  4. Step 4: Simplify right side
    89,707.02x = 9,223,883,127.42
  5. Step 5: Solve for x
    x = 9,223,883,127.42/89,707.02
  6. Step 6: Final answer
    x = 102,822.31

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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.