Home / 129,435.02-178,669.08-75,737.34

Finding the Fourth Proportional to 129,435.02, 178,669.08 and 75,737.34

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Solution

The fourth proportional to 129,435.02, 178,669.08 and 75,737.34 is: 104,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,435.02 : 178,669.08 = 75,737.34 : x
  2. Step 2: Convert to fraction form
    129,435.02/178,669.08 = 75,737.34/x
  3. Step 3: Cross multiply
    129,435.02x = 178,669.08 × 75,737.34
  4. Step 4: Simplify right side
    129,435.02x = 13,531,920,859.45
  5. Step 5: Solve for x
    x = 13,531,920,859.45/129,435.02
  6. Step 6: Final answer
    x = 104,546.06

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1.5x scale

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.