Home / 99,949.02-137,916.30-64,187.46

Finding the Fourth Proportional to 99,949.02, 137,916.30 and 64,187.46

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Solution

The fourth proportional to 99,949.02, 137,916.30 and 64,187.46 is: 88,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,949.02 : 137,916.30 = 64,187.46 : x
  2. Step 2: Convert to fraction form
    99,949.02/137,916.30 = 64,187.46/x
  3. Step 3: Cross multiply
    99,949.02x = 137,916.30 × 64,187.46
  4. Step 4: Simplify right side
    99,949.02x = 8,852,496,989.60
  5. Step 5: Solve for x
    x = 8,852,496,989.60/99,949.02
  6. Step 6: Final answer
    x = 88,570.12

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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.