Home / 125,269.37-172,878.80-74,312.27

Finding the Fourth Proportional to 125,269.37, 172,878.80 and 74,312.27

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Solution

The fourth proportional to 125,269.37, 172,878.80 and 74,312.27 is: 102,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.37 : 172,878.80 = 74,312.27 : x
  2. Step 2: Convert to fraction form
    125,269.37/172,878.80 = 74,312.27/x
  3. Step 3: Cross multiply
    125,269.37x = 172,878.80 × 74,312.27
  4. Step 4: Simplify right side
    125,269.37x = 12,847,016,062.88
  5. Step 5: Solve for x
    x = 12,847,016,062.88/125,269.37
  6. Step 6: Final answer
    x = 102,555.13

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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.