Home / 112,927.79-169,602.29-99,423.75

Finding the Fourth Proportional to 112,927.79, 169,602.29 and 99,423.75

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Solution

The fourth proportional to 112,927.79, 169,602.29 and 99,423.75 is: 149,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,927.79 : 169,602.29 = 99,423.75 : x
  2. Step 2: Convert to fraction form
    112,927.79/169,602.29 = 99,423.75/x
  3. Step 3: Cross multiply
    112,927.79x = 169,602.29 × 99,423.75
  4. Step 4: Simplify right side
    112,927.79x = 16,862,496,192.12
  5. Step 5: Solve for x
    x = 16,862,496,192.12/112,927.79
  6. Step 6: Final answer
    x = 149,321.05

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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.