Home / 125,269.43-172,878.88-74,312.33

Finding the Fourth Proportional to 125,269.43, 172,878.88 and 74,312.33

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Solution

The fourth proportional to 125,269.43, 172,878.88 and 74,312.33 is: 102,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.43 : 172,878.88 = 74,312.33 : x
  2. Step 2: Convert to fraction form
    125,269.43/172,878.88 = 74,312.33/x
  3. Step 3: Cross multiply
    125,269.43x = 172,878.88 × 74,312.33
  4. Step 4: Simplify right side
    125,269.43x = 12,847,032,134.17
  5. Step 5: Solve for x
    x = 12,847,032,134.17/125,269.43
  6. Step 6: Final answer
    x = 102,555.21

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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.