Home / 125,314.09-172,942.59-71,597.95

Finding the Fourth Proportional to 125,314.09, 172,942.59 and 71,597.95

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Solution

The fourth proportional to 125,314.09, 172,942.59 and 71,597.95 is: 98,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,314.09 : 172,942.59 = 71,597.95 : x
  2. Step 2: Convert to fraction form
    125,314.09/172,942.59 = 71,597.95/x
  3. Step 3: Cross multiply
    125,314.09x = 172,942.59 × 71,597.95
  4. Step 4: Simplify right side
    125,314.09x = 12,382,333,688.99
  5. Step 5: Solve for x
    x = 12,382,333,688.99/125,314.09
  6. Step 6: Final answer
    x = 98,810.39

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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.