Home / 156,990.48-216,652.55-89,935.44

Finding the Fourth Proportional to 156,990.48, 216,652.55 and 89,935.44

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Solution

The fourth proportional to 156,990.48, 216,652.55 and 89,935.44 is: 124,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,990.48 : 216,652.55 = 89,935.44 : x
  2. Step 2: Convert to fraction form
    156,990.48/216,652.55 = 89,935.44/x
  3. Step 3: Cross multiply
    156,990.48x = 216,652.55 × 89,935.44
  4. Step 4: Simplify right side
    156,990.48x = 19,484,742,411.37
  5. Step 5: Solve for x
    x = 19,484,742,411.37/156,990.48
  6. Step 6: Final answer
    x = 124,114.17

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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.