Home / 156,990.23-216,652.22-89,935.19

Finding the Fourth Proportional to 156,990.23, 216,652.22 and 89,935.19

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Solution

The fourth proportional to 156,990.23, 216,652.22 and 89,935.19 is: 124,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,990.23 : 216,652.22 = 89,935.19 : x
  2. Step 2: Convert to fraction form
    156,990.23/216,652.22 = 89,935.19/x
  3. Step 3: Cross multiply
    156,990.23x = 216,652.22 × 89,935.19
  4. Step 4: Simplify right side
    156,990.23x = 19,484,657,036.68
  5. Step 5: Solve for x
    x = 19,484,657,036.68/156,990.23
  6. Step 6: Final answer
    x = 124,113.82

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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.